Load RMagick before the gantt helper (#12097).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10915 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine.rb

 
 require 'redmine/core_ext'
 
+begin
+  require 'RMagick' unless Object.const_defined?(:Magick)
+rescue LoadError
+  # RMagick is not available
+end
+
 require 'redmine/about'
 require 'redmine/access_control'
 require 'redmine/access_keys'
 require 'redmine/hook'
 require 'redmine/plugin'
 
-begin
-  require 'RMagick' unless Object.const_defined?(:Magick)
-rescue LoadError
-  # RMagick is not available
-end
-
 if RUBY_VERSION < '1.9'
   require 'fastercsv'
 else