Merge pull request #1258 from jay-hodgson/release-64

update synapse version
Merge pull request #1259 from john-hill/SWC-1782-c

done
SWC-1828: merge fix to release-64
Merge pull request #1264 from jay-hodgson/release-64

SWC-1828: merge fix to release-64
SWC-1831: set version to 1L when submitting non-versionable entities to an evaluation.  Also fix gwt rpc for submission
Merge pull request #1265 from jay-hodgson/SWC-1831

SWC-1831: set version to 1L when submitting non-versionable entities to ...
merge from release-64
Merge pull request #1266 from jay-hodgson/develop

merge from release-64