[CORE][COMPOSER] Move extlib packages with immediate composer correspondent to composer dependencies

This adds a composer.json for all dependencies that are available

public/js/jcrop.go.js

@@ -0,0 +1,50 @@
+/** Init for Jcrop library and page setup
+ *
+ * @package   StatusNet
+ * @author Sarven Capadisli <csarven@status.net>
+ * @author Mikael Nordfeldth <mmn@hethane.se>
+ * @copyright 2009 StatusNet, Inc.
+ * @copyright 2013 Free Software Foundation, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+$(function(){
+    var x = ($('#avatar_crop_x').val()) ? $('#avatar_crop_x').val() : 0;
+    var y = ($('#avatar_crop_y').val()) ? $('#avatar_crop_y').val() : 0;
+    var w = ($('#avatar_crop_w').val()) ? $('#avatar_crop_w').val() : $("#avatar_original img").attr("width");
+    var h = ($('#avatar_crop_h').val()) ? $('#avatar_crop_h').val() : $("#avatar_original img").attr("height");
+
+    $("#avatar_original img").Jcrop({
+        onChange: showPreview,
+        setSelect: [ x, y, w, h ],
+        onSelect: updateCoords,
+        aspectRatio: 1,
+        boxWidth: 480,
+        boxHeight: 480,
+        bgColor: '#000',
+        bgOpacity: .4
+    });
+});
+
+function showPreview(coords) {
+    var rx = 96 / coords.w;
+    var ry = 96 / coords.h;
+
+    var img_width = $("#avatar_original img").attr("width");
+    var img_height = $("#avatar_original img").attr("height");
+
+    $('#avatar_preview img').css({
+        width: Math.round(rx *img_width) + 'px',
+        height: Math.round(ry * img_height) + 'px',
+        marginLeft: '-' + Math.round(rx * coords.x) + 'px',
+        marginTop: '-' + Math.round(ry * coords.y) + 'px'
+    });
+};
+
+function updateCoords(c) {
+    $('#avatar_crop_x').val(c.x);
+    $('#avatar_crop_y').val(c.y);
+    $('#avatar_crop_w').val(c.w);
+    $('#avatar_crop_h').val(c.h);
+};