Added UIApperance-Selectors
added StrokColorSupport and tried to introduced UIApperance, but not working
fixed an UI_APPEARENCE_ISSUE

use ivars in initializer!
reduced ShadowOffset
should not use setter in initializer due to UIAppearance issues
fixed Warnings
Merge branch 'master' of github.com:PocketScientists/SVSegmentedControl into PocketScientists-master

Conflicts:
	SVSegmentedControl/SVSegmentedControl.h
	SVSegmentedControl/SVSegmentedControl.m
	SVSegmentedControl/SVSegmentedThumb.h
Merge branch 'refs/heads/PocketScientists-master'