added unit tests for node handlers
added unit tests for admstaticfiles handlers
added unit tests for receiver handlers
fixed test_node UT
added unit tests for admlangfiles handlers
added unit tests for submission handlers
added unit test skeleton for session_management_sched
added tests/jobs/__init__.py
improved unit tests related to submission handler
improved unit tests related to collection handler
improved unit tests related to submission handler
added unit tests for collection handler
added comment creation to UT helpers in order to improve coverage
UT: added notification_sched call after comments creation
added message creation to UT helpers in order to improve coverage
added unit tests related to rtip/wbtip handlers
implemented a basic pgp check sched and unit tests for its activities
added pgp_check_sched to jobs/__init__.py
various bugfixing in files overview
fixed a file overview UT related to previos commit fix