Fix #23: Categories list shows html entities and code for doublebyte characters
Fix #24: Post editor shows html entities in categories.
Fix #28: A category containing a comma shows up as two categories on the edit screen.
Fix #30: Blank categories are displayed in the category list but not on the edit screen.
Fix #33: Post can loose a category if its not in the category list when categories are added.
Fix #26: Refreshing the categories list forgets categories that were just checked.
Fix #34: Creating a new category does not automatically add it
Change JSONUtil.fromJSONArrayToStringList prototype to return an ArrayList
Save scroll position in SelectCategories after refreshing or adding category
Merge pull request #35 from maxme/category-fixes

Category bug fixes.