Save status of pin_down before leaving fullscreen mode
Fix floating toolbar not appearing on mouse on border
Rename floating toolbar event functions

Fix naming on floating toolbar event functions, adding the
words 'floating' and 'on'.
Merge branch 'gtk3' of github.com:giox069/Remmina into gtk3
Improvements for issue #301
- Save status of pin_down before leaving fullscreen mode
- Fix floating toolbar not appearing on mouse on border
- Rename floating toolbar event functions …

Fix naming on floating toolbar event functions, adding the
words 'floating' and 'on'.