Latest Signup tool 2.0 release on Jan. 2014

git-svn-id: https://source.sakaiproject.org/svn/signup/branches/2-8-x@305945 66ffb92e-73f9-0310-93c1-f5514f145a0a
SIGNUP-252 : Category Dropdown option list has wired double 'All' item

git-svn-id: https://source.sakaiproject.org/svn/signup/branches/2-8-x@306286 66ffb92e-73f9-0310-93c1-f5514f145a0a
SIGNUP-251 : StackOverflowError bugs latent in SignupSorter.java

git-svn-id: https://source.sakaiproject.org/svn/signup/branches/2-8-x@306287 66ffb92e-73f9-0310-93c1-f5514f145a0a