split ToastUtils in ToastUtils+AuthenticationDialogUtils
remove ptr and smooth progress bar dependencies
move broadcast actions from Wordpress.java to PullToRefreshHelper
reimport PullToRefreshHelper from its new location
Added scrollbar to reader post detail layout
Renamed mAdapter to mCommentAdapter
Topmost comment is remembered before new comments are shown so that the topmost comment remains scrolled into view
Merge pull request #1646 from wordpress-mobile/issue/1645-reader-detail-scrollbar

issue/1645-reader-detail-scrollbar
Merge pull request #1647 from wordpress-mobile/issue/1617-reader-comment-adapter

issue/1617-reader-comment-adapter
Merge branch 'develop' into issue/1633-move-ptr-to-utils-subproject

Conflicts:
	WordPress/src/main/java/org/wordpress/android/ui/reader/ReaderPostListFragment.java
	WordPress/src/main/java/org/wordpress/android/ui/stats/StatsActivity.java
	WordPress/src/main/java/org/wordpress/android/util/AuthenticationDialogUtils.java
Merge pull request #1636 from wordpress-mobile/issue/1633-move-ptr-to-utils-subproject

fix #1633 move ptr to utils subproject
Use wordpress-utils:1.0.2
Better handling the highligh state of graph bars by using 'onShowPress' event.
Fix #1644 by resetting the correct variable onPause.
Use the correct number formatter