Improve dataTables integration within the app:

- Manage lib through NPM
- Move portal / Bootstrap files back to the itop-portal-base module (not managed through NPM yet)
- Fix SCSS classes for the backoffice as it was based on the bootstrap CSS classes which are not there anymore

Note: jQuery is included as a dependency, will check with the team if we can force it not to be retrieved

node_modules/jquery/src/traversing/var/dir.js

@@ -0,0 +1,22 @@
+define( [
+	"../../core"
+], function( jQuery ) {
+
+"use strict";
+
+return function( elem, dir, until ) {
+	var matched = [],
+		truncate = until !== undefined;
+
+	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
+		if ( elem.nodeType === 1 ) {
+			if ( truncate && jQuery( elem ).is( until ) ) {
+				break;
+			}
+			matched.push( elem );
+		}
+	}
+	return matched;
+};
+
+} );

node_modules/jquery/src/traversing/var/rneedsContext.js

@@ -0,0 +1,8 @@
+define( [
+	"../../core",
+	"../../selector"
+], function( jQuery ) {
+	"use strict";
+
+	return jQuery.expr.match.needsContext;
+} );

node_modules/jquery/src/traversing/var/siblings.js

@@ -0,0 +1,17 @@
+define( function() {
+
+"use strict";
+
+return function( n, elem ) {
+	var matched = [];
+
+	for ( ; n; n = n.nextSibling ) {
+		if ( n.nodeType === 1 && n !== elem ) {
+			matched.push( n );
+		}
+	}
+
+	return matched;
+};
+
+} );