update authorship information
The copyright notices have not been updated in a very long time. By now so many people have contributed that it is not feasible anymore to have a Copyright line in `magit.el' for everyone. Now only people who have made a fair amount of contributions are listed there. These lines are sorted by appearance. Right below the now shorter Copyright list is a new link to the list of all contributors on github. The header keyword "Original Author" is replaced by just "Author", that's how it is commonly done. All keywords no longer contain whitespace, but use a dash instead. Both Phil Jackson and Peter J Weisberg are now listed as former maintainers. Peter has been removed from the list of active maintainers as he hasn't done much lately. Nicolas Dudebout and I are added to the list active maintainers. That list is sorted by activity. Appropriate Copyright lines and Author keywords are added to files besides `magit.el' (partly this is done in an earlier commit). In `magit-svn.el' and `magit-blame.el' several people have already been listed that have not made a single commit to those file. I assume this is because these files have been ported from other packages and therefor did not remove anyone. I have added myself as Author of `magit-wip.el' even though Ryan C. Thompson wrote the first version, because his version was barely usable. If you are unhappy about a change please contact me.
Showing with 46 additions and 60 deletions