Sparse Stochastic LDA implementation
Make some paramters as default, add prints
Fixed a bug comupting Z for sampling, was causing it to converge slower
Fix a bug while rescaling global topic counts
Prevent boxing, use while loops
Merge remote-tracking branch 'upstream/master'
pass documents to train, make random as implicit
Merge pull request #1 from vineetmundhra/master

Sparse Stochastic LDA Implementation