by adding directories in a loop. Introduce #ifdef for Macs in the hopes
that the code can be deprecated at some time.

Reviewed-by: Friedemann Kleint

Some things like reparenting do not work right now in the Design mode
for anchored items, and we are missing a way to inform the user.
Using absolute positions for positioning therefore avoids confusion
for first time users.

gdb 7.0 will still be considered unsupported due to the division-by-zero crash

Task-number: QTCREATORBUG-493

Task-number:   QTCREATORBUG-503

 * Fall back to the default editor for a the file's
   mime type when it fails to open by editor id.

   This fixes opening editors in a session with invalid
   ids.

Reviewed-by: dt

 * This is more compatible with what we did so far.

Reviewed-by: Erik Verbruggen

  * Use id() for methods returning a string used to represent
    some type of object.
  * Use displayName() for strings that are meant to be user
    visible.
  * Quieten some warnings while touching the files anyway.
  * Move Factories to their products in the plugins where that
    was not done before.

Reviewed-by: dt

Task-number: QTCREATORBUG-503

Task-number: QTCREATORBUG-503

This fixes random crashes