add grammar convert back in
hiero phrase extraction.  Don't trust the word alignments yet.
New classy version
New feature: correct word alignments.  I am on an airplane.
Merge branch 'master' of git://github.com/redpony/cdec
NonTerminal class
Boundary non-terminals
debugging
Working test
Hooks for online grammar extraction
Online phrase extraction speaks rulefactory's language.
Fix TypeError on __str__
Collect/store stats from new training instances
Michael remembers how hiero phrase extraction works.  Not totally
debugged, use -o with caution, etc.
Fixed issue with overlapping alignment links
Track source span to keep accurate phrase counts
code cleanup
fix compile error on older gccs
Online rule extractor output diffs w/ sa extractor
Merge branch 'master' of github.com:redpony/cdec