Use compression in the catalog for plan fragments and for schema.
Merge remote-tracking branch 'origin/master' into hugg-heap
Merge remote-tracking branch 'origin/master' into hugg-heap
Merge remote-tracking branch 'origin/master' into hugg-heap
Make the min catalog version 3.5
Merge remote-tracking branch 'origin/master' into hugg-heap

Conflicts:
	src/frontend/org/voltdb/ProcedureRunner.java
	tests/frontend/org/voltdb/TestTwoSitePlans.java
ENG-5144: Fix last non-working test.
Merge remote-tracking branch 'origin/master' into hugg-heap
ENG-5144: Make compatible catalog version > 3.6.
Using 3.6.1 for now.
Merge pull request #757 from VoltDB/hugg-heap

ENG-5144: Use compression to store fragment plans and schema in the catalog.