Merge branch 'release-0.9' into development
Drop Ruby 1.9.2 support
Merge branch 'drop-1.9.2' into development
Turn all doc to tomdoc format
Merge branch 'improve-doc' into development
Add dev dependency: rspec
Add randomization
Change rspec options
Merge branch 'rspec-options' into development
Add new dev dependencies
Improve metrics tasks
Merge branch 'metrics' into development
Properly escape HTML
Make development deps explicit in gemspec
Move yardoc configuration to .yardopts

Using `.yardopts` allows also external services such as Rubydoc.info
to pick up the correct Yard options.
The NEWS file is not available
Do not mess with $LOAD_PATH
Simplify $COCO_PATH
Separate local afrom global require statements
Simplify code for CSS class detection