added authsch id field to users table

mounted last login field, we have to manually update this, since openam wont
do that for us anymore
mimic access token expiry time with session timeout
update user info with data from auth.sch
extended scope for oauth

* getting extra information for registration
* storing bme id
defensive copy of date in getter and removed uneccesary logging
Merge pull request #131 from kir-dev/user-update

update user info based on auth.sch data