Prevent some memory pooling discovered via eclipse MAT applied to sqlcoverage and junit OOMs
Merge branch 'master' into java_mem_tuning
Limit catalog buffer pooling
Tweak comment.
Remove obsoleted m_serializedCatalog member
Merge branch 'master' into java_mem_tweaked

Conflicts:
	src/frontend/org/voltdb/planner/PlanSelector.java
Allow specifying the AMI ID in the CloudFormation template generator.
ENG-6198. ENG-6527. Make round-trip DDL work in ant and fix up tests.
- Change to boolean environment variable
- Exclude tests that can't pass:
     - Join order
     - Alter table
- Add to build.xml - DDL round-trip is on by default
Remove outdated dos and don'ts from the kit.
Merge pull request #1362 from VoltDB/java_mem_tweaked

Reduce lifetime of large catalog string allocations.