Add support for bulk deleting annotations via API. Users can supply a list
of TSUIDs and/or set a "global" flag along with a time range and any notes
found in that range will be purged.
Also add unit tests for the new annotation bulk delete range.

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Couple of deferred fixes for older Java compilers

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>