doc: Update absolute links to point to their new homes

package.h

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #ifndef CRASHPAD_PACKAGE_H_
 #define CRASHPAD_PACKAGE_H_
 
 #define PACKAGE_BUGREPORT "https://code.google.com/p/crashpad/issues/entry"
 #define PACKAGE_COPYRIGHT \
   "Copyright " PACKAGE_COPYRIGHT_YEAR " " PACKAGE_COPYRIGHT_OWNER
 #define PACKAGE_COPYRIGHT_OWNER "The Crashpad Authors"
 #define PACKAGE_COPYRIGHT_YEAR "2015"
 #define PACKAGE_NAME "Crashpad"
 #define PACKAGE_STRING PACKAGE_NAME " " PACKAGE_VERSION
 #define PACKAGE_TARNAME "crashpad"
 #define PACKAGE_VERSION "0.7.0"
-#define PACKAGE_URL "https://crashpad.googlecode.com/"
+#define PACKAGE_URL "https://crashpad-home.appspot.com/"
 
 #endif  // CRASHPAD_PACKAGE_H_