Added ^ power operator,

Added abs, random_int, random_real, random_shuffle, random_select script functions.
Made == comparison of doubles use a small epsilon, so things like 3/2 == 1.5 are actually true.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@1013 0fc631ac-6414-0410-93d0-97cfa31319b6

src/data/field/choice.cpp

@@ -198,7 +198,7 @@ void ChoiceStyle::initImage() {
 	//       CALL       0
 	//       PUSH_CONST nil
 	//      OR_ELSE
-	intrusive_ptr<ScriptCustomCollection> lookup(new ScriptCustomCollection());
+	ScriptCustomCollectionP lookup(new ScriptCustomCollection());
 	FOR_EACH(ci, choice_images) {
 		lookup->key_value[ci.first] = ci.second.getScriptP();
 	}