Ruby 1.9 compatibility

* Adds current directory to load path for tests because 1.9 does not
* Aliases String#lines to String#to_a under 1.8 to match 1.9 behavior
* Sets encoding magic comment in test file with characters outside ascii
* Require 'ostruct' explicitly

This depends on a patch to Grit to have full functionality through the
whole stack.

lib/gollum.rb

@@ -1,11 +1,15 @@
 # stdlib
 require 'digest/md5'
+require 'ostruct'
 
 # external
 require 'grit'
 require 'github/markup'
 require 'sanitize'
 
+# ruby 1.8 compatibility
+require 'gollum/ruby1.8'
+
 # internal
 require 'gollum/pagination'
 require 'gollum/wiki'

lib/gollum/markup.rb

@@ -320,7 +320,7 @@ module Gollum
       @codemap.each do |id, spec|
         lang = spec[:lang]
         code = spec[:code]
-        if code.all? { |line| line =~ /\A\r?\n\Z/ || line =~ /^(  |\t)/ }
+        if code.lines.all? { |line| line =~ /\A\r?\n\Z/ || line =~ /^(  |\t)/ }
           code.gsub!(/^(  |\t)/m, '')
         end
         data.gsub!(id, Gollum::Albino.new(code, lang).colorize)
@@ -328,4 +328,4 @@ module Gollum
       data
     end
   end
-end
+end

lib/gollum/ruby1.8.rb

@@ -0,0 +1,3 @@
+class String
+  alias :lines :to_a if defined?(RUBY_VERSION) && RUBY_VERSION < '1.9'
+end

lib/gollum/wiki.rb

@@ -332,4 +332,4 @@ module Gollum
       map
     end
   end
-end
+end