fixed bug and added new version of getBestAspectPreviewSize()
fixed bug and added new version of getBestAspectPreviewSize()

cookbrite/cwac-camera,scana/cwac-camera,bearprada/cwac-camera,paulpv/cwac-camera,newtonker/cwac-camera,kolipass/cwac-camera,Heart2009/cwac-camera,commonsguy/cwac-camera,doo/cwac-camera