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/nasm/package.py

@@ -25,15 +25,10 @@
 from spack import *
 
 
-class Nasm(Package):
+class Nasm(AutotoolsPackage):
     """NASM (Netwide Assembler) is an 80x86 assembler designed for
        portability and modularity. It includes a disassembler as well."""
     homepage = "http://www.nasm.us"
     url      = "http://www.nasm.us/pub/nasm/releasebuilds/2.11.06/nasm-2.11.06.tar.xz"
 
     version('2.11.06', '2b958e9f5d200641e6fc9564977aecc5')
-
-    def install(self, spec, prefix):
-        configure("--prefix=%s" % prefix)
-        make()
-        make("install")