IDE: further migration external tools

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42282 4005530d-fff6-0310-9dd1-cebe43e6787f
docs: build lcl chm: added param --css-file, patch 24823

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42283 4005530d-fff6-0310-9dd1-cebe43e6787f