update version to 0.9.6

Author: myTonino

README.md

@@ -73,6 +73,7 @@ Version History
 
 | Version | Date | Comment |
 |---------|------|---------|
+| v0.9.6 | 20.07.2015 | Bug fixes |
 | v0.9.5 | 06.07.2015 | Batch counter, app settings export/import, bug fixes |
 | v0.9.4 | 06.06.2015 | Bug fixes |
 | v0.9.3 | 15.05.2015 | Phidget 1051, [Hottop KN-8828B-2K+](http://artisan-roasterscope.blogspot.de/2015/05/hottop-kn-8828b-2k.html), one extra background curve, bug fixes |