Cleanup linker flags.
Merge pull request #2504 from wordpress-mobile/issue/2503-CleanupLinkerFlags

Cleanup linker flags.
Adding Lookback to Podfile
Adding in code to hook in Lookback
Adjusting Lookback to trigger with a long press

Having lookback trigger with the shake gesture breaks undo.
Added option in settings for shaking -> feedback
Hiding internal beta section when appropriate

Forgot to hide the "Internal Beta" section title in the Settings view when the internal beta wasn't actually activated. Added a check to make sure that the internal beta is activated before the section title is set.
Defaulting the shake gesture for feedback to yes.
Fixing errors in today widget caused by XCode 6.1
Updating code as per @astralbodies's suggestion
Merge pull request #2513 from wordpress-mobile/issue/fix-today-widget-compile-errors

Fixing errors in today extension caused by XCode 6.1
Merge branch 'develop' into issue/add-lookback-to-project
Added LOOKBACK_ENABLED preprocessor macro.
Adding braces around if statement in SettingsViewController
Merge pull request #2510 from wordpress-mobile/issue/add-lookback-to-project

Add lookback.io to the internal beta
Updating project.pbxproj
Merge branch 'develop' into release/4.5