Post detail footer button changes:

 * 48dp touch targets, easier to tap.
 * Fixed orange background color highlight.
Tint the comment icon to match the other icons in the toolbar.
Added additional bitmap creation in ImageHelper.createThumbnailFromUri to create a pixel-accurate cutdown of the image.

Change some of the EXIF method to return Integers instead of Strings.
If a resized image was not able to be created, upload the full size image and add some CSS that will force it to resize in the browser.
Renamed a variable.
Return 0 if exifinterface fails.
Merge pull request #1117 from wordpress-mobile/feature/post-detail-improvements

Post detail toolbar improvements
Updated post detail view toolbar to use holo/genericon icons. Also set buttons to be standard width/height. Fixes #734
Merge pull request #1127 from wordpress-mobile/issue/734-icon-updates

Updated post detail view icons.
Adding a MixPanel event for Out of Memory Errors encountered when resizing bitmaps, so we can measure severity of #1122.
Merge pull request #1134 from wordpress-mobile/issue/1122-oom-bitmap

Better Bitmap Out of Memory Handling
Merge branch 'develop' into issue/1123-sharing-scheduled-post-ver2
let users share post if status=scheduled