CORE-1292 tests
CORE-1292 test modification
Updated selenium so tests work with firefox 18
Implemented WebconnectionController.retryFailed()
Allowed activity show action to clarify intent.
Added redirect on successful retry of failed messages.
Extended activity.moreactions to allow for injection of new actions, and added webconnection.retryFailed action to that.
Merge branch 'master' into CORE-1292

Conflicts:
	plugins/frontlinesms-core/grails-app/controllers/frontlinesms2/WebconnectionController.groovy
	plugins/frontlinesms-core/grails-app/views/activity/webconnection/_list_head.gsp
	plugins/frontlinesms-core/test/integration/frontlinesms2/controller/WebconnectionControllerISpec.groovy
Moved getMoreActions() from Activity to MessageOwner
Fixed broken functional test (had bad jquery use and wrong text)
Merge branch 'master' into CORE-1292
Merge branch 'refs/heads/CORE-1292'