- final 0.26 for real?

-changed version in gradle

Merge branch 'SNAPSHOT'

- updated README.md

- updated readme to 0.23

- Fixed bug in ImageStatistics where unsigned data types were incorre…

…ctly initialized

- Final commit for v0.21

- Fixed a unit test
- Added more usefull error messages to CameraCalibration

- fixed bug in assisted calibration where the blue border was saved t…

…o disk

- put intrinsic.xml in correct location

Candidate 0.19

- final cleanup before release

- final candidate for v0.18?