removing Releases link from the package and stack header as that information is now contained in the main header. The StackReleases macro does not display wet releases (#44) which is no longer necessary. It is already not documented and I will add a deprecation warning for that too.
removing StackReleases.py fixes #44 There are only 310 instances of this macro in the pages databae (including multiple revisions of some pages) which only shows dry releases and are now displayed in the package overview. There's no need for this macro. And it's been removed from documentation and not recommended for a while already.
Merge pull request #109 from ros-infrastructure/remove_releases

Remove releases