HashJoinRegionScanner code refine
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Minor cleanup to SpillableGroupBy
Merge pull request #637 from maryannxue/master

Code refine in HashJoinRegionScanner
Remove unnecessary Aggregator.init() method
Add explicit test of creating a table again
Merge branch 'master' of github.com:forcedotcom/phoenix
Increase heap for test run as we're getting some OOM errors
Merge pull request #647 from yaise/master

Allow for comma at the end of a column_def in a create table statement . Fix for https://github.com/forcedotcom/phoenix/issues/566
Fix compiler warning, add one more negative QueryParserTest for trailing comma
Support for expression that evaluates to an ARRAY
Intellij inspection based fixes.Inlining redundant variables. Adding final modifiers. Use enhanced for loops. Remove redundant boxing/unboxing. Minor boolean expression simplifications. Junit 4 related updates.