Upgrade version to 0.2.1
Upgrade version to 0.2.1

jon-wei/pivot,jon-wei/pivot,jyt109/pivot,coferc/pivot,jon-wei/pivot,coferc/pivot,coferc/pivot,jyt109/pivot,jyt109/pivot,tarekrached/pivot,cheddar/pivot,jyt109/pivot,coferc/pivot,cheddar/pivot,Banno/pivot,tarekrached/pivot,Banno/pivot,jon-wei/pivot,tarekrached/pivot,cheddar/pivot,Banno/pivot,Banno/pivot,cheddar/pivot,tarekrached/pivot