Fix test warnings

Fixed:
[deprecated] I18n.enforce_available_locales will default to true in the future. If you really want to skip validation of your locale you can set I18n.enforce_available_locales = false to avoid this message.
/Users/user/woven/github/gollum-lib/test/test_file_view.rb:57: warning: class variable access from toplevel
test/unit warning: method #<Class:0x007fb591a50c00>#test_title_from_filename_with_normal_contents is redefined
test/unit warning: method #<Class:0x007fb591a50c00>#test_title_from_filename_with_html_contents is redefined
test/unit warning: method #<Class:0x007fb591a28f98>#test_create_and_read_non_latin_page_with_anchor is redefined
Fix anchors for identical content

 #Summary
 #2-Summary
Merge pull request #71 from bootstraponline/fix_test_warnings

Fix test warnings
Merge pull request #72 from bootstraponline/fix_identical_anchors_in_toc

Fix identical anchors in toc
pygments.rb is much better at highlighting

Match bash and unknown language highlighting to GitHub
Allow static rendering of markdown

require 'rubygems'
require 'gollum-lib'

markup = Gollum::Markup.new(false)

markup.render_default '**hi**'
Add font awesome class to anchors in TOC generation

Use fa-link
Fix anchors for identical content

 #Summary
 #2-Summary
Make pygments.rb optional

Default to pygments when installed

Fix warning about test_path
Fix warnings and test output
Fix 2 tests