Use lighter text colour for preference categories and fix layout

See merge request akwizgran/briar!799

Remove support for unbound transport keys

See merge request akwizgran/briar!791

Use git commit timestamp as build timestamp

See merge request akwizgran/briar!798

Use Animal Sniffer to check Java 6 API compatibility

See merge request akwizgran/briar!787

Clear the UI when memory is critically low

See merge request akwizgran/briar!786

Disable expiry for release builds

See merge request akwizgran/briar!797

Commit shared preferences, clear instead of deleting

See merge request akwizgran/briar!794

Add logging to debug account creation and deletion

See merge request akwizgran/briar!793

Store nickname and password across screen rotations

Closes #1229

See merge request akwizgran/briar!796

Send end of stream marker when sync session finishes

See merge request akwizgran/briar!790

Remove circle, make button flat to improve setup UX

Closes #1225

See merge request akwizgran/briar!792

Fix random javadoc errors

See merge request akwizgran/briar!789

Update external dependencies

See merge request akwizgran/briar!788

* Update CircleImageView
* Update Tap target prompt