Update README.md

Add new methods and marked depricated methods

Author: ajant

README.md

@@ -181,22 +181,46 @@ SimpleArrayLibrary::hasAllValues(array('a' => 1), array(1)); // true
 SimpleArrayLibrary::hasAllValues(array(), array()); // true
 SimpleArrayLibrary::hasAllValues(array('b', 1), array('a', 'b')); // false
 ```
+hasOnlyKeys
+------------------------------
+Checks if all required keys are present inside an array, and no other keys.
+```php
+SimpleArrayLibrary::hasOnlyKeys(array('a' => 1, 2), array('a', 0)); // true
+SimpleArrayLibrary::hasOnlyKeys(array('b' => 1, 1), array('b', 0, 1)); // false
+SimpleArrayLibrary::hasOnlyKeys(array('b' => 1, 1), array('b')); // false
+```
 haveEqualKeys
 ------------------------------
-Checks if two arrays have equal keys, regardless of values.
+Checks if two arrays have equal keys, regardless of values. This method is depricated as of version 2.1.0 and will be replaced with haveSameKeys.
 ```php
 SimpleArrayLibrary::haveEqualKeys(array('a' => 1), array('a' => 2)); // true
 SimpleArrayLibrary::haveEqualKeys(array(), array()); // true
 SimpleArrayLibrary::haveEqualKeys(array(1, 'a' => 1), array(2)); // false
 ```
 haveEqualValues
 ------------------------------
-Checks if two arrays have equal values, regardless of keys.
+Checks if two arrays have equal values, regardless of keys. This method is depricated as of version 2.1.0 and will be replaced with haveSameValues.
 ```php
 SimpleArrayLibrary::haveEqualValues(array('a' => 1), array(1)); // true
 SimpleArrayLibrary::haveEqualValues(array(), array()); // true
 SimpleArrayLibrary::haveEqualValues(array(1), array(2)); // false
 ```
+haveSameKeys
+------------------------------
+Checks if two arrays have equal keys, regardless of values.
+```php
+SimpleArrayLibrary::haveSameKeys(array('a' => 1), array('a' => 2)); // true
+SimpleArrayLibrary::haveSameKeys(array(), array()); // true
+SimpleArrayLibrary::haveSameKeys(array(1, 'a' => 1), array(2)); // false
+```
+haveSameValues
+------------------------------
+Checks if two arrays have equal values, regardless of keys.
+```php
+SimpleArrayLibrary::haveSameValues(array('a' => 1), array(1)); // true
+SimpleArrayLibrary::haveSameValues(array(), array()); // true
+SimpleArrayLibrary::haveSameValues(array(1), array(2)); // false
+```
 insertSubArray
 ------------------------------
 Inserts the sub-array into the array in the place to which sub-array's keys point to