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/script/script.cpp

@@ -58,6 +58,8 @@ void init_script_variables() {
 	VarN(in_context,_("in context"));
 	Var(recursive);
 	Var(order);
+	Var(begin);
+	Var(end);
 	Var(filter);
 	Var(choice);
 	Var(choices);