Moved cli test to a lib function, also added tests for the cli command
Added ok/error icons to output messages, relates to #1
Added better success message printing name@version
Added printing of file path on error message, fix #1
Accept path to a folder as an argument, fixes #2
Exit program with an error code when bower.json is not valid, print to stderr error message - fix #3
Added some short comments explaining the exposed methods
Small fixes on README file
Release v0.2.0