chore(npmignore): finalize .npmignore

There were useless files in the npm package
feat(cordova): add a module to load modules from cordova

There are many libs available in cordova, a module loads them
feat(emulator): create module for emulator
fix(cordov_lib): `exist` returns the right value
Reuse emulators already running. Work in progress.
test(emulator): use first emulator if specified one doesn't exist
fix: add underscore as dependency
replace an array
Merge branch '2013-12-23_issue16' of github.com:dsimard/grunt-angular-phonegap into 2013-12-23_issue16
feat: reuse emulators already started

Closes #16
fix platform when loading check_reqs
doc: add .gitignore in README

First step in fixing #3
doc: reference example app

First step in fixing #13
merge for issue #16
release 0.1.3
Merge branch '2013-12-18_0.1.3'