Reviewed-by: chegar, prr, alanb, anthony
Contributed-by: NPrasannaa &lt;prasannaa_ss@yahoo.com&gt;, Martijn Verburg &lt;martijnverburg@gmail.com&gt;, Goerge Albrecht &lt;goerge.albrecht@gmx.net&gt;, Graham Allan &lt;grundlefleck@googlemail.com&gt;, Iordanis Giannakakis &lt;i.giannakakis@ymail.com&gt;, Jose Llarena &lt;jose.llarena@gmail.com&gt;, Abrahamn Marin Perez <abraham.marin.perez@gmail.com>