fix fullscreen on gnome
New feature: menu option toggle sticky vertices
Fix: radius for dragging vertices. Drag shape with left click.
Feature: Select a shape with a click
Fix: Press Esc: Do not close output window
Add missing MM.h to mapmap.pro
Do not display output window at startup
Write/read outputWindowFullscreen setting
Remove unused Facade.{h,cpp} and Controller
Put some long method definitions in the .cpp
Introduced a property panel for paints and managed the case of color (disabling double-click feature in the process)
Merge branch 'develop' of github.com:mapmapteam/mapmap into develop
Merged latest changes from develop