fixed growth and zeroing of the base array (was corrupting)
fixed parent being set wrong resulting in node access corruption
fixed a really retarded loop bug
fixed base array growth invalidating cached pointers
fixed insertion of similar strings which both had valid arc paths but no terminators
--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40198