support for different versions#2

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andi-dev wants to merge 3 commits intorails:masterfrom

andi-dev:master

Commits on Jun 3, 2011

allowing generator to (optionally) accept versions for jquery, ui and ujs - but i didnt include any other versions yet
Andreas Woerle
committed
updated readme, noting the ability to accept versions for jquery and jquery-ui
Andreas Woerle
committed
fixed typo in readme from previous commit
Andreas Woerle
committed