Merge pull request #1076 from alxdarksage/tou

Part 2 of TOU refactor. Now using new tables
update gwt version to 2.5.1
Merge pull request #1077 from jay-hodgson/develop

update gwt version to 2.5.1
PFLM-2575
Merge pull request #1078 from brucehoff/PLFM-2575

PFLM-2575
Added an integration test; may not be complete, OTOH, may be redundant
Merge branch 'develop' of https://github.com/Sage-Bionetworks/Synapse-Repository-Services into tou