diff --git a/package-lock.json b/package-lock.json
index 908ec49..ab59976 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
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+        "@firebase/util": "^0.1.2"
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-        "@firebase/util": "0.1.2",
+        "@firebase/util": "^0.1.2",
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@@ -26,7 +26,7 @@
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-            "websocket-driver": "0.7.0"
+            "websocket-driver": ">=0.5.1"
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@@ -41,24 +41,24 @@
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+        "modelo": "^4.2.0",
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-        "is": "3.2.1",
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+        "extend": "^3.0.0",
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@@ -178,7 +178,7 @@
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+        "@types/node": "*"
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@@ -211,7 +211,7 @@
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-        "fast-json-stable-stringify": "2.0.0",
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@@ -284,7 +284,7 @@
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@@ -1441,7 +1427,7 @@
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@@ -1465,11 +1451,11 @@
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-        "node-pre-gyp": "0.6.39",
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@@ -1480,8 +1466,8 @@
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@@ -1496,8 +1482,8 @@
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@@ -1529,28 +1515,28 @@
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@@ -1589,14 +1575,14 @@
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@@ -1633,7 +1619,7 @@
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@@ -1665,40 +1651,40 @@
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@@ -1711,12 +1697,12 @@
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@@ -1743,10 +1729,10 @@
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@@ -1757,17 +1743,17 @@
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@@ -1810,7 +1796,7 @@
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@@ -1845,14 +1831,14 @@
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@@ -1874,25 +1860,25 @@
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@@ -2352,7 +2338,7 @@
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@@ -2392,7 +2378,7 @@
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@@ -2401,7 +2387,7 @@
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@@ -2421,7 +2407,7 @@
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+      "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
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@@ -2469,10 +2456,10 @@
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-        "moment": "2.19.2",
-        "topo": "1.1.0"
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+        "isemail": "1.x.x",
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@@ -2493,8 +2480,8 @@
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-        "esprima": "4.0.0"
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-        "ms": "2.0.0",
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@@ -2568,7 +2555,7 @@
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-        "jwa": "1.1.5",
-        "safe-buffer": "5.1.1"
+        "base64url": "^2.0.0",
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@@ -2586,7 +2573,7 @@
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@@ -2595,17 +2582,17 @@
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-        "type-check": "0.3.2"
+        "prelude-ls": "~1.1.2",
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-      "integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
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-        "path-exists": "3.0.0"
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@@ -2649,8 +2636,8 @@
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-        "yallist": "2.1.2"
+        "pseudomap": "^1.0.2",
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     "xdg-basedir": {
@@ -3874,7 +3839,7 @@
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-2.1.2.tgz",
       "integrity": "sha1-bv7MKk2tjmlixJAbM3znuoe10os=",
       "requires": {
-        "object-keys": "0.4.0"
+        "object-keys": "~0.4.0"
       }
     },
     "y18n": {
@@ -3888,30 +3853,92 @@
       "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
     },
     "yargs": {
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-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-10.0.3.tgz",
-      "integrity": "sha512-DqBpQ8NAUX4GyPP/ijDGHsJya4tYqLQrjPr95HNsr1YwL3+daCfvBwg7+gIC6IdJhR2kATh3hb61vjzMWEtjdw==",
-      "requires": {
-        "cliui": "3.2.0",
-        "decamelize": "1.2.0",
-        "find-up": "2.1.0",
-        "get-caller-file": "1.0.2",
-        "os-locale": "2.1.0",
-        "require-directory": "2.1.1",
-        "require-main-filename": "1.0.1",
-        "set-blocking": "2.0.0",
-        "string-width": "2.1.1",
-        "which-module": "2.0.0",
-        "y18n": "3.2.1",
-        "yargs-parser": "8.0.0"
+      "version": "13.3.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.0.tgz",
+      "integrity": "sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==",
+      "requires": {
+        "cliui": "^5.0.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^3.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^13.1.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.1.tgz",
+          "integrity": "sha512-ILlv4k/3f6vfQ4OoP2AGvirOktlQ98ZEL1k9FaQjxa3L1abBgbuTDAdPOpvbGncC0BTVQrl+OM8xZGK6tWXt7g=="
+        },
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "cliui": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
+          "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
+          "requires": {
+            "string-width": "^3.1.0",
+            "strip-ansi": "^5.2.0",
+            "wrap-ansi": "^5.1.0"
+          }
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha512-VHskAKYM8RfSFXwee5t5cbN5PZeq1Wrh6qd5bkyiXIf6UQcN6w/A0eXM9r6t8d+GYOh+o6ZhiEnb88LN/Y8m2w=="
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        },
+        "wrap-ansi": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
+          "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+          "requires": {
+            "ansi-styles": "^3.2.0",
+            "string-width": "^3.0.0",
+            "strip-ansi": "^5.0.0"
+          }
+        },
+        "y18n": {
+          "version": "4.0.3",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.3.tgz",
+          "integrity": "sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ=="
+        }
       }
     },
     "yargs-parser": {
-      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-8.0.0.tgz",
-      "integrity": "sha1-IdR2Mw5agieaS4gTRb8GYQLiGcY=",
+      "version": "13.1.2",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+      "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
       "requires": {
-        "camelcase": "4.1.0"
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
       }
     }
   }
diff --git a/package.json b/package.json
index c2d27c4..bd96b65 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "js-yaml": "^3.10.0",
     "node-fetch": "^1.7.3",
     "restify": "^6.3.2",
-    "yargs": "^10.0.3"
+    "yargs": "^13.3.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",