issue #18575: getting project extension from server
issue #18575: generalized downloading of extensions
issue #18575: public plus private extensions loaded together
issue #18575: only load extension if user has access
merge
issue #18575: added extension model and list
issue #18575: added extension workspace
issue #18575: UI to associate orgs with exts
issue #18575: cleanup
issue #18575: Update submodules and quiet relation error.
Merge pull request #367 from jrogelstad/18575

issue #18575: Merge to master.
Merge pull request #361 from shackbarth/18575

issue #18575: load extensions from server
Merge pull request #23 from xtuple/master

Catch up.
Merge pull request #1 from xtuple/master

catching up
issue #19026: added global priv models
merge
issue #19026: start on user privilege assignment
issue #18766: Add public checkbox to incident.
issue #19055: Merge models back into client
issue #19026: two bugfixes