2 major bug fixes and 1 minor fix

first somehow accidentally line 3616 mtgability.cpp removefromgame was adding an observer instead of removing it, this explains "abilities sometimes acting strangely or not being removed"...I'm surprised it didn't create memleaks or extremely visible side-effects...
2nd fixed a bug where triggered abilities would share a menu with activated abilities of a card when ever you had enough mana floating to pay an activated ability before the trigger resolved.

adjust the way ai calculates if it should use cards like wrath of god, though it is still open to using it at a random chance, i noticed that the method we use might not be the best.
an ability with an eff of 1 for example actually has a 10% chance of being choosen....
lets say rng rolls 3402
when you % this it simply takes the 2 last numbers making this roll 2...meaning that unless we assign no "random chance to do blah" the actual chance of ai using a stupid ability is 10%...I'm leaving that logic how it is tho I "unfactored"(?) it to make it easier to track the numbers, also added a debug trace to help see how often we hit "lottery chance" ...
fixed a minor crash from multiability trying to fetch menutext when no abilities existed in the vector anymore.

this patch introduces a new subkeyword for "may " which is syntax pay(manacost)
auto=may pay({w}) untap
this is to allow the card group that was coded using the activated ability loophole i described at the start. it works the same way as it did with the loophole only it is actually something we want to happen instead of a flaw in the engine...you float the mana same as before and when the may line is triggered it will check if payment can be made with exist mana if so then it displays the menutext for the ability, if that ability is choosen it then charges you the mana directly before activation. 

this patch also include flip( ability, tho not intended originally for this version, I had previously had it finished and was polishing it right before I noticed the bugs above. since this keyword is not intended to add cards for this version, I wont go into massive details about it at this time.

projects/mtg/include/CardPrimitive.h

@@ -43,8 +43,6 @@ class CardPrimitive
 #endif
 {
 private:
-    string text;
-    vector<string> formattedText;
     CastRestrictions * restrictions;
 
 protected:
@@ -52,6 +50,8 @@ protected:
     ManaCost manaCost;
 
 public:
+    vector<string> formattedText;
+    string text;
     string name;
     int init();