add tests for creating/updating wikis, fix page name bug along the way

test/helper.rb

@@ -1,4 +1,5 @@
 require 'rubygems'
+require 'rack/test'
 require 'test/unit'
 require 'shoulda'
 require 'mocha'
@@ -8,7 +9,9 @@ dir = File.dirname(File.expand_path(__FILE__))
 $LOAD_PATH.unshift(File.join(dir, '..', 'lib'))
 $LOAD_PATH.unshift(dir)
 
+ENV['RACK_ENV'] = 'test'
 require 'gollum'
+require 'gollum/frontend/app'
 
 # Make sure we're in the test dir, the tests expect that to be the current
 # directory.