Dependency parser implemented using Searn.
Makefile for dep parser
Dependency parser that can work on simple examples
TODO: feature engineering, fix a memory leak bug
quadratic and cubic features for dep parser
fix a memory leak bug
fix more memory leak bugs
- faster implementation of feature extraction
- fix a bug for initializing ezexample
- Rewrite the feature extraction for dep-parser
- TODO: Have memory bugs
Add a  searn application : dependency parser
Merge remote-tracking branch 'upstream2/master'

Conflicts:
	vowpalwabbit/Makefile.am
	vowpalwabbit/searn.cc
working on new search
Merge branch 'master' of github.com:hal3/vowpal_wabbit
Merge branch 'master' of github.com:hal3/vowpal_wabbit
working on bilou
beginning replacement of searn with search
integrated new version of search, updated relevant tests (and removed ones that use beam, since beam is still not supported)
Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
ready to push
added missing files
added missing include
added missing include