bug fixing
i think this should work
rnumber
rnumber
a
new approach to assign holdout
Add observation query
Change groundFactorGraph function prototype - add calibrationSettings
Support specifying custom obervation variables
Temporary changes for porting mariadb
Merge branch 'master' into observation_variables
Merge branch 'matteo-docs' into develop

We already did it in master.
Merge branch 'master' into yilong-tuffy_port
doc, code and example of Tuffy port
Tuffy port: clean up dummy files
Tuffy port: rename directory and refine doc
Tuffy port: edit doc
merge master and fix paths for sampler
yuke compression
yuke