Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
first implementation of truely readable model. use --truely_readable_model arg
-q x:  interacts x wr all namespaces. -q :: interacts between all namespaces
clean up + help message
var name change, check before insert
Merge pull request #131 from eHarmony/fancyq

Interact a namespace with all other namespaces
support both readable and truly_readable
bug fix for str constr
normalized demo
Merge pull request #132 from eHarmony/fancyq

bug fix for str constr
normalized demo
demo
demo
demo
demo
demo
demo
demo
demo
demo