Changed installation verification for mysql and memcached to simply c…

…heck for the respective executable binaries, this allows the user to tweak configuration on a per-slice basis and doesn't rely on a memcached or mysql process to be actually running.

Readded installation verification for ruby_enterprise.
Added libmemcached to the policy list rather than it sitting idle for no reason.

config/install.rb

@@ -9,6 +9,7 @@
   requires :webserver
   requires :scm 
   requires :memcached
+  requires :libmemcached
   requires :ruby_enterprise
 end
 

config/stack/memcached.rb

@@ -5,11 +5,11 @@
   post :install, "/etc/init.d/memcached start"
 
   verify do
-    has_process "memcached"
+    has_executable 'memcached'
   end
 end
 
 package :libmemcached do
   source 'http://download.tangent.org/libmemcached-0.25.tar.gz'
-  requires :memcached
+  requires :memcached_daemon
 end

config/stack/mysql.rb

@@ -3,7 +3,7 @@
   apt %w( mysql-server mysql-client libmysqlclient15-dev )
 
   verify do
-    has_process 'mysql'
+    has_executable 'mysql'
   end
 end
 

config/stack/ruby_enterprise.rb

@@ -19,12 +19,15 @@
     %w(ruby gem rake rails).each do |bin|
       post :install, "ln -s /opt/ruby-enterprise-#{version}/bin/#{bin} /usr/local/bin/"
     end
+
+    # Symlink for other binaries
+    #post :install "sudo ln -s /opt/ruby-enterprise-#{version}/bin/ /usr/local/bin/RE-binaries"
   end
 
-  # verify do
-  #   has_directory "/opt/ruby-enterprise-#{version}"
-  #   has_executable "/opt/ruby-enterprise-#{version}/bin/ruby"
-  # end
+  verify do
+    has_directory "/opt/ruby-enterprise-#{version}"
+    has_executable "/opt/ruby-enterprise-#{version}/bin/ruby"
+  end
 
   requires :apache
   requires :passenger