XWIKI-11094: Upgrade to jQuery 1.11.1.

* We now use webjars to bundle jQuery.
* Also handle the minify parameter in the URL

(cherry picked from commit 5f7a9ebebb40cd03c4ab8df1e93fd686cf02bdc1)
XWIKI-11094: Upgrade to jQuery 1.11.1.

* Little improvement.

(cherry picked from commit 56be047ce5d75ac8b253d892c68d13099bd1af40)