Fix Facebooker::Service::BaseService#post_params for Ruby 1.9.1 by making sure that keys are not Symbols.
Fix Facebooker::Service::BaseService#post_params for Ruby 1.9.1 by making sure that keys are not Symbols.

phallstrom/facebooker,Flameeyes/facebooker,codeodor/facebooker,Flameeyes/facebooker,mmangino/facebooker,mmangino/facebooker,phallstrom/facebooker,codeodor/facebooker