fix #36: NPE - category have a parent with an invalid category id
Merge branch 'category-fixes' into unittests
Merge pull request #37 from maxme/category-fixes

fix #36: NPE - category have a parent with an invalid category id
Create a unittest sub-project.

Add a testcase for malformed category parent id (test #36).
Merge branch 'master' of https://github.com/wordpress-mobile/WordPress-Android into unittests
Merge pull request #38 from maxme/unittests

Create a unittest sub-project
Adding @aagam94's post excerpt patch with a few tweaks:

 * Modified existing post constructor instead of creating another one.
 * Used 'Excerpt' instead of 'Post excerpt' string to match up with core editor.
 * Tweaked the layout margins a bit.
 * Hid the excerpt field if the user is editing a Page.
Adds support for picasa images. Used @aagam94's patch with the following changes:

 * Downloaded image without doing a stream copy.
 * Change return types in some of the DownloadImageTask to be a bit more efficient.
 * Formatted code to Android standards.

Fixes #402. Props aagam94.
Version bump.
Refactored the addMedia() method to support sharing multiple picasa images to a new post.  Removed addMediaFromShareAction() since it was very similar to addMedia() already.
Fixed crash where bitmaps were being recycled too early. See: http://stackoverflow.com/questions/10743381/when-should-i-recycle-a-bitmap-using-lrucache
Resolving merge conflicts