Added @UiThread annotations, minor code cleanups.

.idea/codeStyleSettings.xml

...id/src/org/briarproject/android/blogs/BaseController.java

...roid/src/org/briarproject/android/blogs/BlogActivity.java

...d/src/org/briarproject/android/blogs/BlogCommentItem.java

...rc/org/briarproject/android/blogs/BlogControllerImpl.java

...roid/src/org/briarproject/android/blogs/BlogPostItem.java

...rc/org/briarproject/android/blogs/BlogPostViewHolder.java

...id/src/org/briarproject/android/blogs/ReblogActivity.java

...id/src/org/briarproject/android/blogs/ReblogFragment.java

...d/src/org/briarproject/android/fragment/BaseFragment.java

...android/src/org/briarproject/android/util/AuthorView.java