Add some basic tests for hyper::method::Method
Add some basic tests for hyper::method::Method

This test case does not attempt to test all the methods exhaustively,
but it does at least test all the methods in the APIs.  There's also a
check to make sure that Method can be used as part of a hash-table key.

mikedilger/hyper,giftcards/hyper,nickgonzales/hyper,Keats/hyper,markuskobler/hyper,TimNN/hyper,hyperium/hyper,jmmaranan/hyper,mfeckie/hyper,hannobraun/hyper,bheesham/hyper,hannobraun/hyper,golddranks/hyper,hyperium/hyper,ianks/hyper,PeterReid/hyper,steveklabnik/hyper,youprofit/hyper,Manishearth/hyper,tshepang/hyper,frewsxcv/hyper,yazaddaruvala/hyper,hannobraun/hyper,golddranks/hyper,fengsp/hyper,mitsuhiko/hyper,Keats/hyper,bonifaido/hyper,mlalic/hyper,nickgonzales/hyper,reem/hyper,Keats/hyper,fuchsnj/hyper,fhahn/hyper,sfackler/hyper,markuskobler/hyper,markuskobler/hyper,servo/hyper,mneumann/hyper,softprops/hyper,erickt/hyper,tshepang/hyper,lame-nickname/hyper,rschulman/hyper,yazaddaruvala/hyper,Twey/hyper,nstoddard/hyper,yangxingpping/hyper,nstoddard/hyper,manuel-woelker/hyper,mre/hyper,Twey/hyper,tshepang/hyper,clatour/hyper,pyfisch/hyper,tempbottle/hyper,Ryman/hyper,mlalic/hyper,nickgonzales/hyper,pcwalton/hyper,Twey/hyper,achanda/hyper,retep998/hyper,peterhj/hyper,hyperium/hyper,huonw/hyper,golddranks/hyper