add demo/ocr (http://ai.stanford.edu/~btaskar/ocr/)
output files depend on VW_OPTS
add PYTHON variable
LDF now implemented in python; a few extra helper functions
Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
Add an entity relation task (an application to vw-search)
updated notebook, added more examples
Merge pull request #412 from KaiWeiChang/master

entity_relation using new search interface
Merge pull request #411 from hal3/master

 	LDF now implemented in python; a few extra helper functions
Merge pull request #410 from sam-s/master

add demo/ocr (based on http://ai.stanford.edu/~btaskar/ocr/)
minor bug fixing
Merge remote-tracking branch 'upstream/master' into SearchDepParser

Conflicts:
	vowpalwabbit/search.cc
add a test case for dependency parser