ios7.1 color fixes for Stepper/Progressview

fixes the Stepper to tint color of the +/-
The progress bar image is broken for 7.1 (http://openradar.io/16113307)

for now the only other workaround is to roll own version.. 
http://stackoverflow.com/questions/22311516/uiprogressview-custom-track-and-progress-images-in-ios-7-1