share 5.x-2.0-alpha5

Had issues with the previous two releases not including the correct files. This release contains all the correct files.

This is a major change to the Share module and is not upgradable from previous versions of Share. Please uninstall your existing Share module before installing this version.

NOTE: Share no longer creates the content for the tabs. There is now an API which other modules can use to get their functionality added as a Share tab. I have included a patch for Service Links and the Forward module so that you can continue using those modules with Share until the needed hooks are added to the respected modules.