Grunt
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Update LESS compiling to account for new module structure
Remove async dependency and added grunt-contrib-concat for merging style assets

Markup
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Remove xmlns property from SVG for legacy compatibility

Script
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Fix issue with chained val() arguments
Wee.$val() now works with selects and multiple values

Style
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Update naming convention of less files (i.e. legacy.less -> wee.legacy.less)

Other
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Move sourcemap output to assets/wee/maps