Bug 11369 - Updating the jquery.cookie.js-plugin

Bug 11369 - Updating the jquery.cookie.js-plugin

The current jquery.cookie-plugin crashes when trying to fetch
all cookies using $.cookie();
Downloaded the newest plugin version and minified it.
Now works as intended.

Encountered an issue with the plugin now returning null when
no cookies are found, and applied a fix in browser.js.

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- Test plan -
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Plugin is used in browser.js and batchMod.js so testing both

Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>