Merge pull request #23 from szilardhuber/master

Tried to add logging to diag service.
make sure we don't lose debug symbols with the O2 postgres compile flag
Merge pull request #24 from dbeck/master

make sure we don't lose debug symbols with the O2 postgres compile flag
Merge remote-tracking branch 'upstream/master'

Conflicts:
	common
	src/virtdb_fdw.cc