lcl: gtk2: less hints

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42290 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: further migration external tools

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42291 4005530d-fff6-0310-9dd1-cebe43e6787f