Merge pull request #1 from leilacc/master

Toggle album+song visibility
Merge pull request #2 from leilacc/master

Added previous button and Font Awesome icons
Merge pull request #3 from leilacc/master

Changed server to localhost
added .gitattributes for pbxproj
Refactor status
Library refactor
refactored internal data to more interlinked
Added Song.artist convenience function
Added Song.artist convenience function
Merge branch 'master' of github.com:kasrak/jukebox
removed duplicated function...thanks git.
Simple table-based song view