Remove unneeded code added for the new fields.
Remove redundant methods for access to the portlet data.
Load the spinner.gif from the portal root.

Before the spinner was loaded from portlet context thanks to the acquisition
chain. This change prevents loading the resoruce more that once.
Update changes.
Remove unneeded code added for the new fields.
Remove redundant methods for access to the portlet data.
Load the spinner.gif from the portal root.

Before the spinner was loaded from portlet context thanks to the acquisition
chain. This change prevents loading the resoruce more that once.
Update changes.
Merge rebased branch 'issue_73' of github.com:OpenMultimedia/collective.polls into issue_73

Conflicts:
	CHANGES.rst
	src/collective/polls/portlet/voteportlet.py
Merge pull request #75 from OpenMultimedia/issue_73

closes #73