Update documentation to use github instead of sourceforge

[noahsark769]

If we're going to go ahead with the full move of the project to github (to keep it in the same place with all the other Cal Band github repos) then we should update all the documentation to reference the github page rather than the sourceforge page.

[rmpowell77]

Changed sourceforge setup and permissions for Bugs and SVN. Also updated the landing page to refer to github

[rmpowell77]

I say this is done. We've move much over, we just need to try out a release to see what happens