Add DDL tests for ALLPROC permission and fix a bug in Permission.
Merge pull request #1751 from VoltDB/allproc-fix

Add DDL tests for ALLPROC permission and fix a bug in Permission.
ENG-6858: Add default roles ADMINISTRATOR and USER.

The default roles cannot be disabled nor overriden by roles with the same name
in the DDL.
Merge pull request #1755 from VoltDB/ENG-6858

ENG-6858: Add default roles ADMINISTRATOR and USER.

r=akhanzode
Make SIZES comment well-formed HTML.
Merge pull request #1756 from VoltDB/ENG-7126-broken-size-worksheet

Make SIZES comment well-formed HTML.