Adding rudimentary More Like This Filter and tests.

More tests needed.
Adding list view for related question queries.

The fragment is displayed properly, but does not yet scale/scroll properly.
Fixing MoreLikeThis query for ambiguous ids.

This is probably an ES bug related to the parent-child relation ship. Basically we need to specify the object type when we specify an id, or it doesn't work.
Fix NPE in QuestionListActivity.
Clean up
Fixing reversed sort direction in sort drawer.

Also correct default sort direction.
Removed inline classes
Implementing AttachmentItem GsonTypeAdapter.

Because apparently this wasn't done a million years ago.
Fix attachment item type adapter parent type.
Implemented detached Attachment creation, and bitmap resizing when
loaded by the controller
Moved attachments from QABody into new class QuestionBody
added attachmentview to create question screen
Added attachment view to question creation page, implemented
adding_enabled property in xml
Added AttachmentDisplayView which simplifies the AttachmentView.
Implemented add attachment button outside of the AttachmentView. Added
Attachment name field in the attachment popup.
Fixed error with question ids
Made attachments display a square preview in the display view. Made the
formatting a little nicer.
Deleted AttachmentView (most of its functionality was moved to
AttachmentDisplayView).
Removed commented out test code
Merge pull request #191 from j-rewerts/clean_master

Rearranged the listview.
Merge pull request #190 from Mobius5150/fixed_sort_direction

Fixing reversed sort direction in sort drawer.