Server v0.2.0

• Merge pull request #4 from cube-root/security (a9620e1)
• added more security (a553a69)
• Merge pull request #3 from cube-root/mocks (b06f4d5)
• chore(client): reduce package size from 282 kB to 110 kB (5bd6133)
• docs: add mock mode documentation to root and client READMEs (fbe22e0)
• feat: add mock system with UI, matching engine, and hybrid mode (21358f0)
• updated client version (130b6b0)
• chore(client): add homepage, repository, and bugs to package.json (419c741)