added ouput to png file of plotcircs

- as usual several cirical bugs fixed
- renemad _print functions to _save_to_png
- changed order of arguments for uniformity
- new adapter/plotcirc.hpp file
Merge branch 'master' of https://github.com/InsaneHamster/ihamster

Conflicts:
	src/app/main.cpp

+new functionality to story plotcirc_pt in png files