Merge pull request #13 from adorechic/tond

Add pusher addon to creating messages and distribute it
Change pusher key to variable for fix environment
Setup x server for travis CI
Fix a bug magic pusher key
Add bootstrap to rails
Install bootstrap
Generate layout
Move pusher javascript to coffeescript
Change messages list to table
Change message post form to sticky footer
Add logfile as gitignore
Change rvm to rbenv
Modify failure spec
Modify spec to wait ajax request