Fixing up linear-gradient rules.
Merge pull request #23 from tswaters/master

Fix linear-gradient rules

This way IE works a little better too.
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Ensuring done callback is fired when changing extra fields.
Merge pull request #24 from tswaters/master

Ensuring done callback is fired when changing extra fields
Mention about fixed extras
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Adding validation to fields extra
Merge remote-tracking branch 'upstream/master' into validate
Merge pull request #25 from tswaters/validate

Add validation to extra fields to ensure only numerics are entered
Mention extra validation
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fix #26: alpha slider not firing 'done'
Merge pull request #27 from Lexas/master

fix #26: alpha slider not firing 'done'
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