cgeo/cgeo — pull request #3330 by rsudev (2013-10-04 06:54:30+00:00)
Title: Implements part of #3267, Detect and report time-skew that prevents okapi access

Reports back issues on the main screen, but not yet during the authorization process.
I am unsure about the general concept and the places to put it in, therefore I'd like a review first.