Revert "Removed multiple astrid.com login possibilities from settings."

This reverts commit ff5a1b181dcd476cd37ae141aca901cb8c04dc6c.
Revert "Removed register setting from preferences."

This reverts commit bc07b6b7267d289dadfc71e2f73102d191f676b6.
Merge pull request #33 from shaded2/dc/revet-some-commits

Dc/revet some commits