refactored GPG and delivery_sched logic
restored test_submission UT
implemented https://github.com/globaleaks/GlobaLeaks/issues/491
enhanced test with log stdout, and new assertion overlay
completed test and code of https://github.com/globaleaks/GlobaLeaks/issues/511
reviewed pull/143; good work, corrected only some vecnish.
Bump to version 2.24.9
minor fix to implementation of https://github.com/globaleaks/GlobaLeaks/issues/316
changed session timeout according to https://github.com/globaleaks/GlobaLeaks/issues/510
fix against https://github.com/globaleaks/GlobaLeaks/issues/498
fix against https://github.com/globaleaks/GlobaLeaks/issues/483
aligned an UT in test_authentication.py to latest implemementation
implemented fields validation fixes https://github.com/globaleaks/GlobaLeaks/issues/518
removed a test reintroduced by an erroneous merge
added possibility to resfresh session by doing a GET on the /authentication API
fixed an error on authentication UT (on logout) now spotted thanks to previous commit
removed decoy traffic handler and related staff (completely moved to tor2web)
updated tip status page with context info: https://github.com/globaleaks/GlobaLeaks/issues/513