Merge pull request #4 from 01org/devel

sessiond: created new daemon for each user session
Merge pull request #5 from 01org/devel

fix for the case when environment is empty
Merge pull request #6 from 01org/devel

updated pam conf file and fixed bugs
Merge pull request #8 from 01org/devel

Merge devel branch
manager: add configuration option to enable/disable seats
Updated tizen configuration file for tizen