reinstantiate linkdb min files to merge parm.
link text extraction fixes
emergency fixes
Merge branch 'diffbot' into diffbot-testing

Conflicts:
	Collectiondb.h
facet work
print avg,min,max in facet stats in xml/json output
fix facet link bug for gbmin/gbmax range query
fix facet bug
query syntax updates
emergency fix
quite a few bug fixes from adding the new query
syntax qa test.
Merge branch 'diffbot' into diffbot-testing

Conflicts:
	Msg39.cpp
	Posdb.cpp
fix merge
fix sections.cpp to not set root title section
to tagid TAG_TITLE.
quick fix to also accumulate the avg/min/max stats
from every shard.
Merge branch 'diffbot' into diffbot-testing
Merge branch 'diffbot-testing' into testing