fix #789: check for current blog
fix #730: uppercase file extension weren't recognized
Merge pull request #787 from wordpress-mobile/issue/778-unsatisfiedlinkerror

Use emailchecker 0.2 to fix #778
Merge pull request #790 from wordpress-mobile/issue/730-cant-upload-certain-files

fix #730: uppercase file extension weren't recognized
1st pass at comment detail re-design
Show 'Up' button on those activities that were not showing it.
Merge pull request #791 from wordpress-mobile/issue/789-npe-shareintentreceiver

fix #789: check for current blog when saving pref in shareintentreceiver
2nd pass at comment detail re-design
fix #767: create a link from res/drawable-xhdpi/ic_reader_video_overlay.png to assets/ic_reader_video_overlay.png
3rd pass at comment detail re-design, also fixed bugged that caused CAB drawables to be changed globally (due to lack of .mutate)
Fix #796
Fix #794 - RuntimeException in ReaderPostTable
Removes unused instance variables. Props @nbradbury
Merge pull request #792 from wordpress-mobile/issue/768-missing-up-button

Show 'Up' button on those activities that were not showing it.
Catch the NPE when creating the Geocoder obj
Merge pull request #808 from wordpress-mobile/issue/795-Geocoder-NPE

Catch the NPE when creating the Geocoder obj
Catch an IndexOutOfBoundsException when creating the copy of the post content's editable. If the exception is caught we'll just use the post content EditText's current editable. Only drawback to this is that there's a quick flash of HTML displayed as the post is saving.

Also cleaned up a few compiler warnings.
Removed a ViewPager instance and TabListener that wasn't being used. Props @nbradbury
Merge pull request #784 from wordpress-mobile/feature/stats-ux-improvements

Stats UX Improvements
Ensure we have a valid currentBlog before checking for local changes. Fixes #793.