code for getting models on all pca (non-bins)
add snp stats
major changes related to handling of reading and writing hdfstore
update ignore for pyc
add hdfstorehelper class to avoid fragility of the HDFStore in pandas/pytables
Merge remote-tracking branch 'origin/master'

Conflicts:
	launch_cluster.ipynb
	snp_calling.ipynb
add orig merge files to ignore