tablesorter: add latest version 2.15.13; remove versions used in alpha and beta tagged releases that have been superseded with a final tag version (i.e., leave version related to latest 12.1alpha still being tested)
tablesorter: add latest version 2.15.13; remove versions used in alpha and beta tagged releases that have been superseded with a final tag version (i.e., leave version related to latest 12.1alpha still being tested)

git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@50685 b456876b-0849-0410-b77d-98878d47e9d5

changi67/tiki,tikiorg/tiki,tikiorg/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,oregional/tiki,tikiorg/tiki,oregional/tiki,changi67/tiki,oregional/tiki,changi67/tiki,changi67/tiki