added dictionary reading
added dictionary reading
dictionaries working, except for auditing
fixed read_example bug in libsearch
added setup/takedown to search structure
allowed active learning to use keypress rather than input line
allowed active learning to separately specify "human readable" data
added dictionary features to parse_args
added test case for dictionary
pulled changes

Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
fixed kai-wei's found bug of caching with learner_id
large speedup to example creation in python
fixed osx bug in active iterator
remove bug i introduced
speed up example construction in python
allow lambdas for examples for lazy computation
Merge pull request #436 from hal3/master

multiple edits to: active learning, search, python interface, and new feature -- dictionaries