Prefer Engine::disable_symbol to disable eval.

doc/src/language/eval.md

@@ -60,7 +60,13 @@ print(x);
 --------------
 
 For those who subscribe to the (very sensible) motto of ["`eval` is evil"](http://linterrors.com/js/eval-is-evil),
-disable `eval` by overloading it, probably with something that throws.
+disable `eval` using [`Engine::disable_symbol`][disable keywords and operators]:
+
+```rust
+engine.disable_symbol("eval");  // disable usage of 'eval'
+```
+
+`eval` can also be disabled by overloading it, probably with something that throws:
 
 ```rust
 fn eval(script) { throw "eval is evil! I refuse to run " + script }
@@ -75,20 +81,3 @@ engine.register_result_fn("eval", |script: String| -> Result<(), Box<EvalAltResu
     Err(format!("eval is evil! I refuse to run {}", script).into())
 });
 ```
-
-
-`EvalPackage`
--------------
-
-There is even a package named [`EvalPackage`][packages] which implements the disabling override:
-
-```rust
-use rhai::Engine;
-use rhai::packages::Package             // load the 'Package' trait to use packages
-use rhai::packages::EvalPackage;        // the 'eval' package disables 'eval'
-
-let mut engine = Engine::new();
-let package = EvalPackage::new();       // create the package
-
-engine.load_package(package.get());     // load the package
-```

doc/src/rust/packages/builtin.md

@@ -19,7 +19,6 @@ Built-In Packages
 | `BasicArrayPackage`    | basic [array] functions (not available under `no_index`)                                               |    no     |      yes      |
 | `BasicMapPackage`      | basic [object map] functions (not available under `no_object`)                                         |    no     |      yes      |
 | `BasicFnPackage`       | basic methods for [function pointers].                                                                 |    yes    |      yes      |
-| `EvalPackage`          | disable [`eval`]                                                                                       |    no     |      no       |
 | `CorePackage`          | basic essentials                                                                                       |    yes    |      yes      |
 | `StandardPackage`      | standard library (default for `Engine::new`)                                                           |    no     |      yes      |