Revert r1154600: Modified (some) 'About' windows to carry legally enforceable Copyrig...

Revert r1154600: Modified (some) 'About' windows to carry legally enforceable Copyright messages. Also looks better than '(c)'. ;-)
Also fixed a few typos where I noticed them.

Please don't do huge sweeping changes of KAboutData things without talking to the authors first.  I'm sure they don't appreciate having their names removed from the about dialogs.

Note that
(a) the unicode copyright character is no more enforcible than (c)
(b) while "the KDE developers" is not a legal entity, neither is "Dolphin authors"
(c) it was decided a while back that we don't care about whether the copyrights in about dialogs are meaningful, since they can't hope to encompass everyone who holds copyrights on the application code or any of the libraries it is linked to; the copyright headers in the source files are the important ones.

I realise that I'm reverting more than necessary, but that's just a reason for breaking up commits :-)

CCMAIL: kamikazow@web.de
CCMAIL: kde-licensing@kde.org

svn path=/trunk/KDE/kdebase/apps/; revision=1154884