Update bootstrap-switch.less v1.8

Update bootstrap-switch.less v1.8

static/less/bootstrap-switch.less

@@ -1,5 +1,5 @@
 /* ============================================================
- * bootstrapSwitch v1.7 by Larentis Mattia @SpiritualGuru
+ * bootstrapSwitch v1.8 by Larentis Mattia @SpiritualGuru
  * http://www.larentis.eu/
  *
  * Enhanced for radiobuttons by Stein, Peter @BdMdesigN