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/lbxproxy/package.py

@@ -25,7 +25,7 @@
 from spack import *
 
 
-class Lbxproxy(Package):
+class Lbxproxy(AutotoolsPackage):
     """lbxproxy accepts client connections, multiplexes them over a single
     connection to the X server, and performs various optimizations on the
     X protocol to make it faster over low bandwidth and/or high latency
@@ -50,9 +50,3 @@ class Lbxproxy(Package):
     depends_on('bigreqsproto', 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')