Update copyright and add a few credits (many more are missing)
Update copyright and add a few credits (many more are missing)

svn path=/trunk/kdepim/; revision=280468

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi