big blue join button
Merge pull request #685 from jay-hodgson/release-21

big blue join button
Merge pull request #687 from jay-hodgson/develop

update synapse artifact to grab new synapse java client (PLFM-2320)
SWC-1043: set target if outside client host
new test
from code review
simplify and fix bug around requesting
New version that includes sources to work with gwt unit
Merge pull request #691 from marcel-blonk/develop

New version that includes sources to work with gwt unit
Merge pull request #688 from jay-hodgson/SWC-1043

Swc-1043: pass client host info to server, and set href target based on it.
Merge branch 'release-21' into develop