Adding script to automate upload of internal beta to HockeyApp.
Added a dependency check to script.
Fixing crash where comment can sometimes be nil.
Merge pull request #2257 from wordpress-mobile/issue/add-script-to-upload-to-hockey-app

Added script to automate the uploading of internal beta to HockeyApp
Merge pull request #2271 from wordpress-mobile/issue/fix-crash-in-abstract-comment

Fixing crash where comment can sometimes be nil.
Updating WordPress-iOS-Analytics to 0.0.3.
Adding in additional Mixpanel tracking code for stats.

* Stats - Opened Web Version
* Stats - Tapped Bar Chart
* Stats - Scrolled to Bottom
Removed analytics for WPAnalyticsStatNotificationPerformedAction.

We dumped this from the main analytics repo so we needed to remove
the instances where the code would track this.
Merge pull request #2277 from wordpress-mobile/issue/add-in-stats-analytics

Add in more analytics to stats
Merge branch 'release/4.3' into develop

Conflicts:
	WordPress/Classes/ViewRelated/Notifications/NotificationsCommentDetailViewController.m
	WordPress/Classes/ViewRelated/Notifications/NotificationsFollowDetailViewController.m
Merge branch 'develop' of github.com:wordpress-mobile/WordPress-iOS into develop

Conflicts:
	Pods/Pods.xcodeproj/project.pbxproj
	WordPress/Classes/ViewRelated/Notifications/NotificationsCommentDetailViewController.m
	WordPress/Classes/ViewRelated/Notifications/NotificationsFollowDetailViewController.m