[Deprecated] AviatorScript 5.0.0-RC2

Main changes:

• new Class(args) statement to create an instance of special class with arguments, for example:

let s = new String("test");
p(type(s)); ## print string

• throw exception statement to throw an exception.
• try/catch/finally statement to handle exceptions, for example:

   try {
       throw "an exception";
   } catch(e) {
       pst(e);
   } finally {
       p("finally");
   }

• Fixed #228 can't run on IBM jdk.
• Fixed Opitons.MAX_LOOP_COUNT.
• Make seq.get to support List.
• AviatorEvaluatorInstance#aliasFunction(name, alias) to alias a function.
• New function pst(e) to print stacktrace of an exception.
• Alias function println to p.
• Every statement has a value:

let a = if(true) {
   2
};

p(a);  ## print 2

• Breaking changes:
  • Checking equality of two different types x == y or x !=y doesn't throw an exception any more but returns false.