Added Android Requirements
added project briefing when --source specified
Add exacutable mca script and mca.bat to make it runnable without .js

 - Move mca.js to  src/
 - Add mca to bin of package.json for "npm link"
Merge pull request #30 from MobileChromeApps/mca_bat

Add exacutable mca script and mca.bat to make it runnable without .js
Merge pull request #26 from chameleon95/patch-1

Added Android Requirements
Edit docs to use "mca" executable instead of mcs.js
fixed i18n update to change - to _