Log Message:
Update to 1.1.0

* Newer GCC requires swig2.

Changelog:
Version 1.1.0:
- geometry tools: sequence of lines, curved lines, ellipses
- new brush and layer blending modes; different layer merging
- new color dialog: palette and gamut mapping
- improved document frame, can be resized on canvas
- symmetric drawing mode
- old color changer ("washed") from 0.6 is available again
- toolbar improvements, e.g. move layer mode, pan/zoom
- revised cursor and on-canvas color picker
- better separation of mypaint's brush library; json brush file format
- translations, performance improvements, bugfixes, and more