Updated gitignore.

Please ignore _CodeSignature in the future. .tmproj is now un-ignored because there are no TextMate projects anymore in this project.
New Action: Expand Short URL

Based on: https://gist.github.com/Zettt/88ef3112c04ebecf475b
Added audio files types to Open in Favorite Editor script.
Replaced Expand Short URL .scpt file with a (Git) readable .applescript one.
Info.plist now also uses text readable version of Expand URL.
Bumped up version number of Expand URL, removed old version.
New Action: Down For Everyone Or Just Me
Added icon for Down For Everyone.
Localization for Down For Everyone.
Refactored code. Code signed. Code refactoring.
Bumped up version number in Info.plist files.
Merge branch 'convert-to-lbactions'