redesign brushpicker dialog
Merge remote-tracking branch 'origin/8.xx_Dialog_Design' into
8.86_brushpicker_dialog_redesign

Conflicts:
	Paintroid/src/org/catrobat/paintroid/dialog/BaseDialog.java
BrushPicker RadioButtons test added
redesign brushpicker
Merge remote-tracking branch 'origin/master' into 8.86_brushpicker_dialog_redesign
layout changes, drawable circle and rect addes
square.xml and circle.xml addes
small design changes for apis < 11
tests fixed
Merge remote-tracking branch 'origin/8.86_brushpicker_dialog_redesign' into 8.86_brushpicker_dialog_redesign
fix min of brush size
cosmetic
minimum seekbar test fixed
remove setText
remove default break
Merge pull request #67 from Catrobat/8.86_brushpicker_dialog_redesign

8.86 brushpicker dialog redesign
Implementation: @markusschmid
Acceptance: @michaelmuenzer
removed interfaces, introduced PaintroidImage class,
Merge branch 'master' into 8.78_FileIO
refactor PaintroidApplication
refactor dialogs, combined help, error, warning dialogs to info dialog