Purpose of this commit is to standardize portal user behavior and creation.
As all portal required features (user, group, support) have moved to
base let us move the template user used to create portal users to base.
'Portal User Template' is therefore moved from auth_signup to base module.
Various config parameters are updated due to the change in xml id.
This commit is related to task ID 31399 .
The is_portal flag was used before to define if a group is a portal group. This is not true anymore since the default portal group should be used for this purpose. All logic associated to this flag can be removed.
TASK: 47937
Rohan Patel