1st pass at determining optimal drawer width
Moved drawer width routine to WPActivityUtils
Adjusted for static drawer
Updated comment and tweaked algorithm
Increased right margin on drawer row badge
Merge branch 'release/3.5' of https://github.com/wordpress-mobile/WordPress-Android into issue/2055-optimal-drawer-width

Conflicts:
	WordPress/src/main/java/org/wordpress/android/ui/WPDrawerActivity.java
	WordPress/src/main/res/layout/activity_drawer.xml
Resolved conflicts in previous commit
Merge pull request #2056 from wordpress-mobile/issue/2055-optimal-drawer-width

Issue/2055 optimal drawer width