Adds --show option to list files being built on run/push

[jiahuang]

fixes #90

>> tessel push index.js --show
TESSEL! Connected to TM-00-04-f000da30-005d4344-60782586.
INFO Bundling directory /Users/jialiya/projects/technical/test/pins (~838 bytes)
  tessel compiling +0ms _start.js
  tessel writing +10ms _start.js
  tessel compiling +1ms app/index.js
  tessel writing +3ms app/index.js
INFO Deploying bundle (4.50 KB)...
INFO Finished deployment
INFO Run "tessel logs" or "tessel push <script.js> -l" to see logged output.

Also removed deprecated tessel run --version command.

[tcr]

Probably shouldn't do it this way.

[tcr]

don't pass in argv, they're not the same set of arguments.

[tcr]

I'm not sure why this isn't part of -v verbose. Also this PR fails.

[tcr]

same here, don't replace this with argv.