v2.0 Release Candidate 2

PLCEdit v2.0 release candidate 2 is released today.

Today we try it again. I’m sorry for the last release.
It was very flawed and I’ve disabled the download. Sad
Some minor changes in the class PageCtrl causes
a lot of painful bugs. With the current fixes in the file
opening and file storge routines it should be done.
The new version was tested very hard and with all
sorts of nonsens - hopefully it was enough this time.

It seems there is a problem with Qt 4.x and the Mac
metal styled toolbar on Mac OS 10.5.x systems.
If PLCEdit crashes on your system, please contact
me - you’ll get a version without the metal toolbar.

The actual todo list:
- enable POU info dialog for KW-Soft description section (done)
- fixing some minor bugs, wich are still hiding
- preparing the app and the docu for the release