HUE-2232 [search] Examples don't install with MySql
HUE-2231 [fb] Make current directory selectable

Refactored templates (moved css to external file, cleaned up js, improved readability)
Updated handleSelect to toggle off select all text box when a box is toggled off
added checkbox to cwd
updated view data to add parent directory to list before cwd to ensure check boxes are grouped together in table layout
[core] Update integration tests to pull the latest Hadoop jars