Saving progress towards being able to select ignored columns.
Merge branch 'master' into ignore

Conflicts:
	bayesdb/client.py
	bayesdb/parser.py
Merge branch 'master' into ignore

Conflicts:
	bayesdb/engine.py
Resolved merge conflicts
Removed leftover merge conflict text and whitespace
Updated engine and client tests for update schema, especially ignore datatype
Merge branch 'ignore' into dev
Merge branch 'ignore'
Merge branch 'master' of https://github.com/mit-probabilistic-computing-project/BayesDB into help
Merge branch 'dev' of https://github.com/mit-probabilistic-computing-project/BayesDB into help