Merge branch 'master' of https://github.com/iview/iview into 2.0

Update carousel component: add loop and radiusDot property
# Conflicts:
#	package.json
#	src/components/date-picker/picker.vue
#	src/components/select/select.vue

src/components/carousel/carousel-item.vue

@@ -27,6 +27,15 @@
         mounted () {
             this.$parent.slotChange();
         },
+        watch: {
+            width (val) {
+                if (val && this.$parent.loop) {
+                    this.$nextTick(() => {
+                        this.$parent.initCopyTrackDom();
+                    });
+                }
+            }
+        },
         beforeDestroy () {
             this.$parent.slotChange();
         }