2.1.1 move to 2.x
2.3 Client artifacts

Signed-off-by: SamitaMShephertz <samita.mahajan@shephertz.co.in>
sample updated

Signed-off-by: SamitaMShephertz <samita.mahajan@shephertz.co.in>
docs added
Merge branch 'master' of github.com:shephertz/App42_PHP_SDK