Support tours with a plural name.

[miah]

"If you give a tour a name that is pluralized, it won’t work. This is probably a bug worth fixing. The reason for it is that we take file names and “classify” them, and e.g. “ranking_reports” becomes “RankingReport”, not “RankingReports”. This is an artifact of borrowing from Rails’ activesupport libs and should probably be fixed."

[base10]

+1