adding lang attribute to excerpt textarea when editing a post or page

git-svn-id: https://plugins.svn.wordpress.org/basic-bilingual/trunk@808431 b8457f37-d9ea-0310-8a92-e5e31aec5664
wrong version number

git-svn-id: https://plugins.svn.wordpress.org/basic-bilingual/trunk@808432 b8457f37-d9ea-0310-8a92-e5e31aec5664