parser: Removed unnecessary "False"

Signed-off-by: Martin Stone <martin@d7415.co.uk>
excalibur: Make importable

Signed-off-by: Martin Stone <martin@d7415.co.uk>
parser: If a scan's tick hasn't happened yet, store the unparsed scan instead of rejecting it.
parser: Allow scans to be parsed more than once, so long as they weren't linked to a planet.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
excalibur: Reparse any scans that are not linked to a planet.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
excalibur: Check for scans that have failed to parse even though the tick data is available and raise an error in errorlog if required.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
Core/string, merlin.cfg: Enable emailing of log entries.

Signed-off-by: Martin Stone <martin@d7415.co.uk>