Created some example effects
Merge remote-tracking branch 'origin/effects' into effects
Merge branch 'master' into effects
Merge branch 'master' into effects
Implemented Beastial Wrath with the new effects system.
Re-added pypy3 testing
Small tweaks to the effect system
Remove /opt from coverage testing (pypy3 seems to think it is part of the project)
Changes to auras and spell_targetable, and some small bugfixes.
Spacing fixes
Shifted all Hunter cards to the effect system
Druid cards are now on the effect system as well.
Updated Timber Wolf to use the effect system.  Made Paladin Minions copyable.
Formatting fixed
Refactored the effect system to allow for more flexibility in creating effects
Merge branch 'effects'