Added comment stats. Only lines beginning with three slashes are counted, since these stats should reflect comments used for documentation, not inline explanations.
Added command line option (‚comment‘) for the comment string; default is ‚///‚
Merge branch 'comments_stats' of git://github.com/maplesteve/git_stats into maplesteve-comments_stats

Conflicts:
	lib/git_stats/base.rb
	lib/git_stats/cli.rb
	lib/git_stats/generator.rb
	lib/git_stats/git_data/repo.rb
Merge branch 'maplesteve-comments_stats'
I18n.enforce_available_locales = true