Fix: `dt-init sorting` as 1D array didn't get indexing correct

* The sort handler was expecting to deal with a 2D array, so we always
  dropped into the single column first sort condition.
* See thread 20811 for more information.
Fix example: JS array data source had invalid HTML
Update: jQuery to 1.11.1
Fix: Compatiblity with jQuery 1.7.0+

* jQuery before 1.8 didn't like append being given an array of mixed
  nodes and elements
* This fixes DataTables/DataTables #320
Fix: Search via the API wasn't populating the search input

* This fixes DataTables/DataTables #323
Update: jQuery 1.11.1
Dev: Syntaxlighting without a specific brush should still be enhanced from MD
Dev: Slight change for the styling of the tabs in the demos