updated podspec to require 5.0 sdk
updated podspec to require 5.0 sdk

AlexDenisov/iActiveRecord,valerius/VinylRecord,3dcl/iActiveRecord,3dcl/iActiveRecord,AlexDenisov/iActiveRecord,AlexDenisov/iActiveRecord,valerius/VinylRecord,3dcl/iActiveRecord,valerius/VinylRecord,3dcl/iActiveRecord,valerius/VinylRecord