supported timezone and ISO8601 https://github.com/globaleaks/GlobaLeaks/issues/55, updated DB
implemented ISO8601 datetime and timezone utils https://github.com/globaleaks/GlobaLeaks/issues/55
fixed unitTest for ISO861 datetime https://github.com/globaleaks/GlobaLeaks/issues/55
reactor is now automatically stopped on startup failures without the need for CTRL+C
Merge pull request #81 from globaleaks/feature/isoformat

Feature/isoformat
partial implementation of 'Host:' validation, https://github.com/globaleaks/GlobaLeaks/issues/73
Merge branch 'master' of http://github.com/globaleaks/GLBackend
implemented #82 and cleaned the default fields
https://github.com/globaleaks/GLBackend/commit/afd420ac4d5850779de1b1c7e5fbbf576b968646#commitcomment-2819120
extended with command line the acceptable Host