WL-720 Added a name-value pair for GeneralActionError to poll messages.

GeneralActionError & GeneralShowError are name-value pairs expected to be
found by the RSF framework. I have added both for the sake of completeness
and based their values on their corresponding values in evaluation (another
RSF tool). As an interim solution I have appended a warning to do
with the additional instructions for the poll being too long. A better
more complete solution is to change the type for the POLL_DETAILS field in
the POLL_POLL table (see SAK-13310), in order to overcome the current 255
character limit.
WL-1223 Update polls UI to include m.ox URL/QR.

Conflicts:
	tool/src/webapp/css/poll_base.css
	tool/src/webapp/templates/votePolls.html
WL-1349 Always show link to m.ox
This is because someone giving a presentation may wish to show the link to people on a projector but can't as they have already voted.
WL-1420 Allow anonymous to use /direct/poll-vote
The problem with developerHelperService.getCurrentUserId() is that it returns null for anonymous rather the correct empty string. Using null fails in unlock calls.

Conflicts:
	tool/src/webapp/WEB-INF/applicationContext.xml
WL-1400 apply patch WL-1440-26x.patch

Conflicts:
	tool/src/java/org/sakaiproject/poll/tool/producers/ResultsProducer.java
	tool/src/webapp/css/poll_base.css
	tool/src/webapp/templates/voteResults.html
WL-1400 apply patch WL-1440-26x.patch

Conflicts:
	tool/src/java/org/sakaiproject/poll/tool/producers/ResultsProducer.java
	tool/src/webapp/css/poll_base.css
	tool/src/webapp/templates/voteResults.html
WL-1496 Switch to https chart URL.
This avoids mixed content warnings on browsers.
WL-1685 WL-943 Rewrite poll description and options.

Conflicts:
	impl/src/test/org/sakaiproject/poll/logic/test/stubs/EventTrackingServiceStub.java
	pack/src/webapp/WEB-INF/components.xml
WL-1685
Switch to Oxford release

Conflicts:
	api/pom.xml
	assembly/pom.xml
	impl/pom.xml
	pack/pom.xml
	poll-help/pom.xml
	pom.xml
	tool/pom.xml
WL-1923 Fix for broken poll results.

This was caused by a broken WL-1440 merge. Which I think was caused by SAK-17206 which added better handling when poll options get deleted.
Do not check visitRight if the poll is public
Allow votes on public polls by anyone