Remove proguard-warnings
Remove proguard-warnings

The Android-support-package has a lot of references to classes from newer APIs, but it seems that they are used dynamically if they are available.
samueltardieu/cgeo,brok85/cgeo,brok85/cgeo,schwabe/cgeo,superspindel/cgeo,Huertix/cgeo,marco-dev/c-geo-opensource,SammysHP/cgeo,lewurm/cgeo,brok85/cgeo,vishwakulkarni/cgeo,yummy222/cgeo,schwabe/cgeo,Bananeweizen/cgeo,ThibaultR/cgeo,superspindel/cgeo,yummy222/cgeo,yummy222/cgeo,xiaoyanit/cgeo,tobiasge/cgeo,Huertix/cgeo,cgeo/cgeo,madankb/cgeo,lewurm/cgeo,auricgoldfinger/cgeo,madankb/cgeo,matej116/cgeo,auricgoldfinger/cgeo,marco-dev/c-geo-opensource,mucek4/cgeo,cgeo/cgeo,cgeo/cgeo,pstorch/cgeo,kumy/cgeo,Huertix/cgeo,madankb/cgeo,Bananeweizen/cgeo,rsudev/c-geo-opensource,pstorch/cgeo,kumy/cgeo,KublaikhanGeek/cgeo,tobiasge/cgeo,SammysHP/cgeo,mucek4/cgeo,ThibaultR/cgeo,auricgoldfinger/cgeo,S-Bartfast/cgeo,lewurm/cgeo,rsudev/c-geo-opensource,Bananeweizen/cgeo,S-Bartfast/cgeo,KublaikhanGeek/cgeo,schwabe/cgeo,rsudev/c-geo-opensource,vishwakulkarni/cgeo,tobiasge/cgeo,marco-dev/c-geo-opensource,cgeo/cgeo,KublaikhanGeek/cgeo,samueltardieu/cgeo,matej116/cgeo,ThibaultR/cgeo,matej116/cgeo,xiaoyanit/cgeo,superspindel/cgeo,SammysHP/cgeo,S-Bartfast/cgeo,kumy/cgeo,samueltardieu/cgeo,vishwakulkarni/cgeo,pstorch/cgeo,schwabe/cgeo,mucek4/cgeo,xiaoyanit/cgeo