Delete test documents
Collapsed VB Online Learning for LDA
I do not implement computing perplexity yet
Make DOCLDA
Fix bugs
Code cleaning
Merge branch 'LDA_CollapsedVBOnline'

Conflicts:
	Topic_Models/src/edu/kaist/uilab/NoSyu/LDA/CollapsedVB/LDA_Collapsed_VB_Example.java
Merge branch 'LDA_DistributedCollapsedVBOnline'