Add new language: norwegian bokmål

git-svn-id: https://plugins.svn.wordpress.org/am-events/trunk@795284 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add Norwegian language and update readme.txt


git-svn-id: https://plugins.svn.wordpress.org/am-events/trunk@795286 b8457f37-d9ea-0310-8a92-e5e31aec5664