Always install apache and proxy-uwsgi

We're going to want to start using it by default so just start with
always installing it. This should not negatively impact anything else.

Also had to fix the test using cowsay, now that cowsay depends on
cowsay-off.

Part of uwsgi in devstack.

Change-Id: I8306a992d9d006bc0130a255145a6880065aa0df
diff --git a/files/rpms/general b/files/rpms/general
index baba06b..106aa6a 100644
--- a/files/rpms/general
+++ b/files/rpms/general
@@ -7,6 +7,8 @@
 gettext  # used for compiling message catalogs
 git-core
 graphviz # needed only for docs
+httpd
+httpd-devel
 iptables-services  # NOPRIME f23,f24,f25
 java-1.7.0-openjdk-headless  # NOPRIME rhel7
 java-1.8.0-openjdk-headless  # NOPRIME f23,f24,f25