Test on Ruby 2.1.1

The current stable version of Ruby is 2.1.1 so gollum-lib should be tested there.
Fix tests on Ruby 2.1.1
Merge pull request #69 from bootstraponline/ruby_2.1.1_test_fix

Fix tests on Ruby 2.1.1
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
Fix test reporting on html failure
Merge pull request #73 from bootstraponline/fix_test_reporting

Fix test reporting on html failure
Use pygments by default if it's installed
Update Gemspec
Merge pull request #74 from bootstraponline/pygments_by_default

Use pygments by default if it's installed
Enable static rendering of data without creating a wiki
Apply RubyMine format to all code
Merge pull request #75 from bootstraponline/static_rendering

Enable static rendering of data without creating a wiki
Use font awesome for TOC anchor links

http://fortawesome.github.io/Font-Awesome/
Format test code

Update gemspec
Add test for class value
Merge pull request #76 from bootstraponline/update_template_css

Use font awesome for TOC anchor links
Update version to 3.0.0