IDE: clena up

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42708 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: warn for invalid lines in lazarus.cfg

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42709 4005530d-fff6-0310-9dd1-cebe43e6787f