catch another ssl error
allow all ankiwebview instances to take focus

the canFocus/canCopy separate variables was silly, as we ended up
with text that could be copied from the context menu but not with
a shortcut key. also we default to allowing focus now, since that's
the more sensible default. fixes copy issues with card info dialog and
some addons
don't add <br> tags when importing html

fixes #1098