added custom icon font
Merge pull request #3 from isaacroldan/fixIconFont

added custom icon font
Now icons can be set as String with icons
Merge conflicts solved
Issue with icons font solved
New version and podspec updated
Updated tag
New version
Fixed misaligment between icon and text
Updated version of pod
Updated podspec with iOS 7 minimum requeriment
Created UIAwesomeButton class and updated travis
Added new class and updated the specs of travis
Update README.md
Added an actinBlock to execute when the user press over the new button
Update README.md

Added action block to the new button
Updated schemes to pass travis
Modified travis.yml. Build-tests to build
Updated travis to pass
Updated .gitignore