Fix whitespace issues.
Update jQDateRangeSliderHandle.js

Using negative Dates (BC), e.g. new Date(-400,0,1) as bounds crashed the whole slider in Firefox.
In Firefox the following will create an "Invalid Date": var a = new Date(-400,0,1); var b = new Date(a);
So to clone the Date Object it is safer to use its valueOf than the Date-object itself.
npm update
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dependencies versions
node 0.10
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CI
Merge pull request #175 from fk/fix-whitespace

Fix whitespace issues
Update jQDateRangeSlider.js
Merge pull request #178 from mcauer/patch-2

Update jQDateRangeSlider.js
Merge pull request #177 from mcauer/patch-1

use ValueOf for creating new dates
Merge pull request #1 from ghusse/master

Update from origin