CECP-52 : Send Notification Mail with User Information once a user is created

Signed-off-by: Houssem NJAH <njah.houssem@exoplatform.com>
Merge branch 'master' of https://github.com/hnjah/ecp
CECP-61 : create subscription-type

Signed-off-by: Houssem NJAH <njah.houssem@exoplatform.com>