Merge branch 'mplegendre-multi_pkgsrc_roots' into develop

- This moves var/spack/packages to var/spack/repos/builtin/packages.

- Packages that did not exist in the source branch, or were changed in
  develop, were moved into var/spack/repos/builtin/packages as part of
  the integration.

Conflicts:
	lib/spack/spack/test/unit_install.py
	var/spack/repos/builtin/packages/clang/package.py

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

@@ -0,0 +1,22 @@
+from spack import *
+
+class Wget(Package):
+    """GNU Wget is a free software package for retrieving files using
+       HTTP, HTTPS and FTP, the most widely-used Internet protocols. It
+       is a non-interactive commandline tool, so it may easily be called
+       from scripts, cron jobs, terminals without X-Windows support,
+       etc."""
+
+    homepage = "http://www.gnu.org/software/wget/"
+    url      = "http://ftp.gnu.org/gnu/wget/wget-1.16.tar.gz"
+
+    version('1.17', 'c4c4727766f24ac716936275014a0536')
+    version('1.16', '293a37977c41b5522f781d3a3a078426')
+
+    depends_on("openssl")
+
+    def install(self, spec, prefix):
+        configure("--prefix=%s" % prefix,
+                  "--with-ssl=openssl")
+        make()
+        make("install")