Fix places that assumed old format of ManaCost.toString() to either call new getCostString() function or assume {G} formatting

This fixes bugs with Rout ("may cast as instance if you pay 2 more" cards)
This also fixes bugs with Rune Snag ("unless player pays X" cards)

forge-core/src/main/java/forge/card/mana/ManaCost.java

@@ -226,6 +226,13 @@ public final class ManaCost implements Comparable<ManaCost> {
         return this.stringValue;
     }
 
+    /**
+     * @return unformatted cost string
+     */
+    public String getCostString() {
+        return ManaCostParser.stripFormatting(this.toString());
+    }
+
     /**
      * TODO: Write javadoc for this method.
      * @return

forge-core/src/main/java/forge/card/mana/ManaCostParser.java

@@ -10,7 +10,7 @@ public class ManaCostParser implements IParserManaCost {
     private final String[] cost;
     private int nextToken;
     private int colorlessCost;
-    
+
     /**
      * Parse the given cost and output formatted cost string
      * 
@@ -22,6 +22,15 @@ public class ManaCostParser implements IParserManaCost {
     	return manaCost.toString();
     }
 
+    /**
+     * Strip formatting from the given formatted cost string
+     * 
+     * @param formattedCost
+     */
+    public static String stripFormatting(final String formattedCost) {
+        return formattedCost.replaceAll("\\{([A-Z0-9/]+)\\}", "$1 ").trim();
+    }
+
     /**
      * Instantiates a new parser cardname txt mana cost.
      *