[lazarus] Updates

[Mattias Gaertner]

Hi all,

I have improved the accelerator shortcuts.
Accelerators are now grouped and shared. Menu short cuts are not any
longer active on modal forms. This fixes many bugs. For example:
- Search again, when the message 'Not found' already appeared
- In the editor options you can now set again the keys via the Grab
Buttons.
- And many other double dialogs


Minor updates:

- Fixed wrong calculation of client origin coordinates for some widgets
- Fixed loading TListView from stream
- Added special paint messages for some gtk internal widgets
- accelerated GetTextMetrics
- fixed jump history for double jumps


Mattias