deep_merge hash patch breaking rails 3

[sporto]

Added the gem to a rails 3 project, immediately started getting errors like:

undefined method deep_merge' for "%Y-%m-%d":String undefined methoddeep_merge' for ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]:Array

I haven't look into this too much, but the deep_merge patch in design_directory.rb is creating conflicts.