Add toBeGreatThanOrEqual and toBeLessThanOrEqual matchers

- Implements issue #1013

src/core/matchers/requireMatchers.js

@@ -5,6 +5,8 @@ getJasmineRequireObj().requireMatchers = function(jRequire, j$) {
       'toBeDefined',
       'toBeFalsy',
       'toBeGreaterThan',
+      'toBeGreaterThanOrEqual',
+      'toBeLessThanOrEqual',
       'toBeLessThan',
       'toBeNaN',
       'toBeNull',

src/core/matchers/toBeGreaterThanOrEqual.js

@@ -0,0 +1,14 @@
+getJasmineRequireObj().toBeGreaterThanOrEqual = function() {
+
+  function toBeGreaterThanOrEqual() {
+    return {
+      compare: function(actual, expected) {
+        return {
+          pass: actual >= expected
+        };
+      }
+    };
+  }
+
+  return toBeGreaterThanOrEqual;
+};

src/core/matchers/toBeLessThanOrEqual.js

@@ -0,0 +1,14 @@
+getJasmineRequireObj().toBeLessThanOrEqual = function() {
+  function toBeLessThanOrEqual() {
+    return {
+
+      compare: function(actual, expected) {
+        return {
+          pass: actual <= expected
+        };
+      }
+    };
+  }
+
+  return toBeLessThanOrEqual;
+};