Move OAuthMethod.redirect_uri into a property
Move OAuthMethod.redirect_uri into a property

As mentioned in the comment, this is to allow redirect_uri to be able to get information like the current URL scheme from the current request. This wasn't possible when redirect_uri was computed only at object instantiation.
paxswill/evesrp,paxswill/evesrp,paxswill/evesrp