Again adjusted discovery thresholds. Better to have false positives than
totally miss a game that is actually there.
Added convenience methods to the pqhelper __init__.py so that versus and
capture can be done in a single step without needing to worry about other
details.
add explicit thresholds to tile identification. default ones were too
loose and accepted obviously wrong images.
update to TankLevel colors for health and mana to make them more accurate.
Update to manual tests (== readme examples) to use the new top level easy
interface.
loosen health specification tolerance to allow better performance in the
average case (updated screen investigator changed behavior).
Without changing specification, made major change to implementation of
scoring. Now it does a relative scoring to show whether the end results
are relatively better for the player or opponent. Positive scores are
better for player and vice versa. This makes it possible / easier to
determine when it might be better to use a spell or make an illegal move.