nvda

3b86bce2 - Fix wx assertions in updateCheck caused by manipulating timers from a background thread. (PR #6798, issue #6152)

Fix wx assertions in updateCheck caused by manipulating timers from a background thread. (PR #6798, issue #6152) There are two places where we were setting a timer in updateCheck from a background thread: 1. We do automatic update checks in a background thread, and when it's done, we then set up the next check in that thread. 2. We download updates in a background thread and use a timer to push progress updates from that thread to the GUI. This fixes both of those to use CallAfter.