* Add minimum and maximum target counts as parameters for TargetAmount and its subclasses; update/add several rules comments (and one actual text) for clarity; remove unused imports
* Get amount+description from target instead of parameters for DistributeCountersEffect and DamageMultiEffect; additions to TargetImpl.getDescription to accommodate
* Create separate method to check if "any number" phrasing should be used, override it in TargetAmount
* Check instanceof TargetAmount before casting
* Add new constructors to chain off of for TargetCreaturePermanentAmount & TargetCreatureOrPlaneswalkerAmount
* Fix text for Storm the Seedcore
* Use Integer.MAX_VALUE instead of 0 to represent no maximum targets
* Add comment about getUseAnyNumber()
* Use amount-only constructors in some TargetAmount subclasses, add clarifying documentation
* Fix a few calls
* Require more specific filters
"b" + "r" now changed to 'b' + 'w'. It's more straight-forward, and may cause perfomance improvements - character primitives allocation is faster and less expensive than string creation.
