Updated changelog + verified filepicker

Author: estruyf

.npmignore

@@ -7,6 +7,7 @@ src
 temp
 config
 typings
+lib/extensions
 lib/webparts
 assets
 dist

CHANGELOG.JSON

@@ -7,10 +7,11 @@
           "`FieldCollectionData` control [#591](https://github.com/pnp/sp-dev-fx-controls-react/pull/591)"
         ],
         "enhancements": [
+          "`FilePicker`: Stock images option added [#593](https://github.com/pnp/sp-dev-fx-controls-react/issues/593)"
         ],
         "fixes": [
           "`ComboBoxListItemPicker`: fetching only 100 items [#569](https://github.com/pnp/sp-dev-fx-controls-react/issues/569)",
-          "`TaxonomyPicker`: browse (tree view) doesn't work with SP 2016 On Premise [#183](https://github.com/pnp/sp-dev-fx-controls-react/issues/183)"
+          "`TaxonomyPicker`: browse (tree view) doesn't work with SP 2016 On-Premises [#183](https://github.com/pnp/sp-dev-fx-controls-react/issues/183)"
         ]
       },
       "contributions": [