IDE: package editor: update properties when files changed

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@45431 4005530d-fff6-0310-9dd1-cebe43e6787f
FpDebugger (pure): Show a message when starting the debuggee has failed. With some special attention to the case that someone tries to debug a 64 bit application with a 32 bit debugger.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@45432 4005530d-fff6-0310-9dd1-cebe43e6787f