Bump version 0.5.0

Author: jajm

plugin.ini

@@ -2,7 +2,7 @@
 name = "Element Types"
 author = "Julian Maurice"
 description = "Allow elements to have a type, thus allowing easier input. For instance, this plugin implements the 'date' type and show a datepicker widget for elements of this type. Other types can be implemented by plugins."
-version = "0.4"
+version = "0.5.0"
 license = "GPLv3"
 link = "https://github.com/biblibre/omeka-plugin-ElementTypes"
 support_link = "https://github.com/biblibre/omeka-plugin-ElementTypes/issues"