Minor: added some Q_UNUSED() to prevent warnings
Disable addTriangle/Mesh for when no paint is selected
Check type instead of n vertices to display correct icon
Actual implementation of createTriangleTextureMapping()
Fixed bug: wrong shape were selected when the mappings were reordered
Add save/load of meshes
Stub for clearProject()
Merge branch 'statesaving' of github.com:libremapping/libremapping into statesaving