Adds back some missing english strings. Fixes #876
Merge pull request #877 from wordpress-mobile/issue/876-missing-string-crash

Adds back some missing english strings. Fixes #876
Fix #878 - reader backstack issue
Optimized method for returning number of new posts retrieved for a specific tag.
Merge pull request #879 from wordpress-mobile/issue/878-reader-backstack

Fix #878 - reader backstack issue
Version code bump, and use latest version of build tools.
Created column index object that can be re-used when retrieving multiple posts from the database. This was added after seeing Traceview identify "getColumnIndex()" as a bottleneck when retrieving multiple posts.
Code reformatting
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into issue/695-reader-post-detail-fragment

Conflicts:
	src/org/wordpress/android/ui/WPActionBarActivity.java