IDE: cleanup

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@47197 4005530d-fff6-0310-9dd1-cebe43e6787f
Examples: Fix GUI handlers and updates in CleanDir\ConfDirs example. Issue #16693.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@47198 4005530d-fff6-0310-9dd1-cebe43e6787f