PostsActivity now finishes if reader is displayed due to no visible blogs
Merge pull request #1182 from wordpress-mobile/issue/1181-reader-endless-back

issue/1181-reader-endless-back
new copy constructor for MediaFile
fix #1184: don't reuse the same MediaFile after the resized image has been uploaded
Merge pull request #1187 from wordpress-mobile/issue/1184-full-image-with-link

fix #1184 full image with link