Add show model to engine
Merge branch 'master' of github.com:mit-probabilistic-computing-project/BayesDB
Update demos to use DESC
Removed '<command> hist pairwise'; replaced with 'plot <command>'
Update chicago analysis to use PLOT instead of HIST PAIRWISE
Update demos to use GIVEN in SIMULATE
Update docs to include PLOT
Make debug mode display detailed error messages from parser (in addition to engine errors, which it already did)
Change default ordering to DESC
Fix parser test to test for new default ordering (desc)
Reformat list btables output to be more table-like
Make show models output prettier.
Reformat output for show schema and estimate columns
Show schema format update
add show models parsing
Update hierarchical clustering library to remove warning message spam.
Merge branch 'master' of https://github.com/mit-probabilistic-computing-project/BayesDB into pyparsing

Conflicts:
	bayesdb/client.py
	bayesdb/engine.py
	bayesdb/parser.py
	bayesdb/select_utils.py
	bayesdb/tests/test_parser.py
	docs/bql.rst