Remove unnecessary warnings

Fix error handling in gl as in wx.

Previously error from async functions made an exit when the next
sync call checked the message queue. This have been changed to an
error report instead since the errors where async there where really
hard to handle.

Also changed the error report format to make it easier to filter
them with a custom error_handler.

To avoid failing on slow machines

Needed functionality, to avoid abusing opauqe objects.

and avoid large logs when tests succed

Commands could be executed twice, if the command was dispatched
from a callback and caused a recursive invocation of command loop.
Solution is to mark op as -1 before calling wxWidgets.

Also commands could be missed when idle processing was done inside
while executing a recursive callback, solved be always resetting peak
index after idle processing is done.