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/xev/package.py

@@ -25,7 +25,7 @@
 from spack import *
 
 
-class Xev(Package):
+class Xev(AutotoolsPackage):
     """xev creates a window and then asks the X server to send it X11 events
     whenever anything happens to the window (such as it being moved,
     resized, typed in, clicked in, etc.).  You can also attach it to an
@@ -45,9 +45,3 @@ class Xev(Package):
     depends_on('xproto@7.0.17:', type='build')
     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('install')