Moved UnicodeWriter into utils folder.
Added training script for interactive topic model.
Changed train_mallet from bash to python script.
Fixed typo in train_treetm.py
Changed LDA into a self-contained class.
Correctly write index.json and states.json in TreeTM class.
Increased memory for treetm.
Temporarily removed import_treetm from demo script.
Incorporated both import-(file|dir) and train-topics into MalletLDA.
Incorporated import-(file|dir) into TreeTM.
Automatically resume training from command line.
Formatting changes.
Created stand-alone GensimLDA.
Simplified training python scripts.
Fixed issue when TreeTM iter doesn't increase.
Added logging to all topic model training scripts, and topic model classes.
Finished converting all import scripts into independent python classes.
Removed obsolete file.
Turned off nice axis scaling for doc-topic and term-topic matrices.
Fixed bug in train_stm placeholder.
Updated ScatterPlot to use new data types: integer, real, string.