- changed height: 0px to height: auto for uk.treeview-menu to fix not smooth treeview closing
- fixed .content-wrapper calc, it returned -2% before
- changed order of js file generation
- rebuild dist files

- updated repository url in package.json
- updated copyright infos for js in Gruntfile.js
- updated copyright infos for css in AdminLTE.less & AdminLTE-without-plugins.less
- rebuild dist files

- updated ControlSidebar.js to hide control sidebar instead of only moving it
- updated dashboard.js to use containment in sortable()
- added display none to control sidebar content in index.html

(Closes #1924)

* issue1976

* issue1976_grunt_js