Set up basic main update function in CreEval.
Added verbosity option to main update function.
Fixed typo in Predictor output.

NOTE: Also changed suggestion to suggestion.flatten() in Spearmint/main.py's "get_suggestion" line 391 to avoid a bug in case of there being only one exploitParam
Fixed typo in Predictor output.

NOTE: Also changed suggestion to suggestion.flatten() in Spearmint/main.py's "get_suggestion" line 391 to avoid a bug in case of there being only one exploitParam