Fixes suffix removal for fields that use them
fix "import -l logpath" CLI option (GC-518)
update plugin API docs for 1.1
summary paragraph for 1.1b2
fix a couple of typos found by RIT students
remove AutotagError dead code

Another silly mistake identified by the RIT testing team.
Added tag v1.1.0-beta.2 for changeset f28ea9e2ef8d
version bump: 1.1b3
mention GStreamer plugins in BPD docs
docs: may need to create directories