define propTypes for activeKey and defaultActiveKey

Author: AlexKVal

src/CollapsableNav.js

@@ -12,6 +12,7 @@ const CollapsableNav = React.createClass({
 
   propTypes: {
     onSelect: React.PropTypes.func,
+    activeKey: React.PropTypes.any,
     expanded: React.PropTypes.bool,
     eventKey: React.PropTypes.any
   },

src/Nav.js

@@ -12,6 +12,7 @@ const Nav = React.createClass({
   mixins: [BootstrapMixin, CollapsableMixin],
 
   propTypes: {
+    activeKey: React.PropTypes.any,
     bsStyle: React.PropTypes.oneOf(['tabs', 'pills']),
     stacked: React.PropTypes.bool,
     justified: React.PropTypes.bool,

src/SubNav.js

@@ -11,6 +11,7 @@ const SubNav = React.createClass({
   propTypes: {
     onSelect: React.PropTypes.func,
     active: React.PropTypes.bool,
+    activeKey: React.PropTypes.any,
     disabled: React.PropTypes.bool,
     href: React.PropTypes.string,
     title: React.PropTypes.string,

src/TabbedArea.js

@@ -21,7 +21,9 @@ const TabbedArea = React.createClass({
   mixins: [BootstrapMixin],
 
   propTypes: {
-    bsStyle: React.PropTypes.oneOf(['tabs','pills']),
+    activeKey: React.PropTypes.any,
+    defaultActiveKey: React.PropTypes.any,
+    bsStyle: React.PropTypes.oneOf(['tabs', 'pills']),
     animation: React.PropTypes.bool,
     onSelect: React.PropTypes.func
   },