Allocate packages with higher functions capacity.

examples/hello.rs

@@ -1,5 +1,4 @@
 use rhai::{packages::*, Engine, EvalAltResult, INT};
-use std::rc::Rc;
 
 fn main() -> Result<(), Box<EvalAltResult>> {
     let mut engine = Engine::new_raw();

examples/repl.rs

@@ -1,12 +1,9 @@
-use rhai::{Dynamic, Engine, EvalAltResult, Scope, AST, INT};
+use rhai::{Dynamic, Engine, EvalAltResult, Scope, AST};
 
 #[cfg(not(feature = "no_optimize"))]
 use rhai::OptimizationLevel;
 
-use std::{
-    io::{stdin, stdout, Write},
-    iter,
-};
+use std::io::{stdin, stdout, Write};
 
 fn print_error(input: &str, err: EvalAltResult) {
     let lines: Vec<_> = input.trim().split('\n').collect();

examples/rhai_runner.rs

@@ -3,7 +3,7 @@ use rhai::{Engine, EvalAltResult};
 #[cfg(not(feature = "no_optimize"))]
 use rhai::OptimizationLevel;
 
-use std::{env, fs::File, io::Read, iter, process::exit};
+use std::{env, fs::File, io::Read, process::exit};
 
 fn eprint_error(input: &str, err: EvalAltResult) {
     fn eprint_line(lines: &[&str], line: usize, pos: usize, err: &str) {