rename RemoteConfigKey to RemoteConfigField

And some associated renames.
I was going to have some values named fooKeyKey otherwise..

Remote/Helper/AWS.hs

@@ -23,7 +23,7 @@ creds :: UUID -> CredPairStorage
 creds u = CredPairStorage
 	{ credPairFile = fromUUID u
 	, credPairEnvironment = ("AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY")
-	, credPairRemoteKey = "s3creds"
+	, credPairRemoteField = "s3creds"
 	}
 
 data Service = S3 | Glacier

Remote/Helper/Special.hs

@@ -74,7 +74,7 @@ gitConfigSpecialRemote u c cfgs = do
 	forM_ cfgs $ \(k, v) -> 
 		setConfig (remoteConfig c k) v
 	storeUUIDIn (remoteConfig c "uuid") u
-	case M.lookup sameasUUIDKey c of
+	case M.lookup sameasUUIDField c of
 		Nothing -> noop
 		Just sameasuuid -> setConfig (remoteConfig c "config-uuid") sameasuuid