Version skew problem arising from Maruku filter

[mfaughn]

haml-contrib is dependent on Tilt, which it picks up from it's dependency on Haml. The current release of Tilt (2.6.0) no longer includes the MarukuTemplate class, which results in a NameError: uninitialized constant Tilt::MarukuTemplate when haml-contrib tries to register the Maruku filter. Haml will rescue a LoadError for when it requires maruku.rb from haml-contrib but nothing handles the NameError. There are a couple ways to fix this. If I knew which one the maintainers preferred, I'd go ahead and do it myself...but I don't know which way they would prefer to see this fixed.

[mfaughn]

Hmmm, maybe this is only problem for haml-5.x.x? If so, I suppose nobody cares to do much about this. I just changed filters.rb in lib/haml to rescue NameError too when it tries to load Maruku.