update to jekyll 2.x

see #46

Gemfile

@@ -7,10 +7,8 @@ group :development do
   gem 'redgreen', '~> 1.2'
   gem 'shoulda', '~> 3.5'
   gem 'rr', '~> 1.1'
-  gem 'cucumber', '=1.3.10'
-  gem 'RedCloth', '~> 4.2'
-  gem 'rdiscount', '~> 1.6'
-  gem 'redcarpet', '~> 3.0'
+  gem 'cucumber', '1.3.11'
+  gem 'redcarpet', '~> 3.1'
   gem 'launchy', '~> 2.1.2'
 
   gem 'unicode_utils'

jekyll-scholar.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |s|
   s.required_rubygems_version = '>= 1.3.6'
   s.rubyforge_project = s.name
 
-  s.add_runtime_dependency('jekyll', '~> 1.0')
+  s.add_runtime_dependency('jekyll', '~> 2.0')
   s.add_runtime_dependency('citeproc-ruby', '~> 1.0')
   s.add_runtime_dependency('csl-styles', '~> 1.0')
   s.add_runtime_dependency('bibtex-ruby', '~> 3.0')