Massive conversion from Package to AutotoolsPackage (#2845)

* Massive conversion from Package to AutotoolsPackage

* Forgot to convert p4est to AutotoolsPackage

* Fix typo

* Fix broken link in docs

var/spack/repos/builtin/packages/xauth/package.py

@@ -25,7 +25,7 @@
 from spack import *
 
 
-class Xauth(Package):
+class Xauth(AutotoolsPackage):
     """The xauth program is used to edit and display the authorization
     information used in connecting to the X server."""
 
@@ -43,9 +43,4 @@ class Xauth(Package):
     depends_on('pkg-config@0.9.0:', type='build')
     depends_on('util-macros', type='build')
 
-    def install(self, spec, prefix):
-        configure('--prefix={0}'.format(prefix))
-
-        make()
-        # make('check')  # TODO: add package for cmdtest build dependency
-        make('install')
+    # TODO: add package for cmdtest test dependency