Clarify Rails 3+ compatibility and suggest locking to 3.0.x
Clarify Rails 3+ compatibility and suggest locking to 3.0.x

BenjamH/will_paginate,CloudVLab/will_paginate,betterplace/will_paginate,solanolabs/will_paginate,kirs/will_paginate,CloudVLab/will_paginate,mislav/will_paginate,ThiagoLelis/will_paginate,ThiagoLelis/will_paginate,poporul/will_paginate,mislav/will_paginate,jonatack/will_paginate,kirs/will_paginate,notonthehighstreet/will_paginate,lloydmeta/will_paginate,notonthehighstreet/will_paginate,sideci-sample/sideci-sample-will_paginate,xingxing/will_paginate,solanolabs/will_paginate,lloydmeta/will_paginate,betterplace/will_paginate,sideci-sample/sideci-sample-will_paginate,BenjamH/will_paginate,xingxing/will_paginate,jonatack/will_paginate,poporul/will_paginate