Update underscore.js v1.5.2

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Update jQuery v1.10.2

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Update Modernizr v2.6.2

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Update jQuery UI v1.10.3

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Update Select2 v3.4.3

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Tweak css based on Select2 changes.

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Small tweak.

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use Input::old().

Signed-off-by: crynobone <crynobone@gmail.com>