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jQuery.fx.off = true;
This will turn off all animations on the page and make them jump to their end state when called. There are some websites that this would be a large improvement outside of testing.
You can’t chain rake tasks – Rake is designed to emulate Make, which views running a rake task as fulfilling a requirement. This has been pretty thoroughly explained in blabs previously. If you’re having problems with rake you should take a look at thor.