cff-to-opencog perl parser version bug fix
bug fix: wrong method parameter type causing compile fail
Latest LG is version 5.2.1
Merge pull request #197 from asuiu/suiu

cff-to-opencog perl parser version bug fix
revert the double-int change
Remove support for OpenNLP version 1.4 and earlier
Remove mention of xerces; its no longer needed
Whoops, fix build target too
Update the README slightly
Re-weight how parse costs are computed.

This fixes issue #169. Finally.