+ Move PM labels to their own tables

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
! Lots of bugfixes related to previous commit

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
! More bugfixes

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
! Forgot the in_inbox column for pm_recipients on install. Also, make it 1 by default.

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
! Might help to actually tell the DB what table a particular alias belongs to...
! Yet another bugfix commit

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
! Final(?) bugfix commit

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
! Don't need this anymore either...

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
Merge pull request #870 from Oldiesmann/pm_labels

Pm Labels Overhaul