Add a "Search only" mode in which data is not sent from Wordpress to OpenSearchServer: this can be used if index is managed in another way (with a web crawler for instance).
Add an option allowing to not automatically post query settings to OpenSearchServer. This can be useful for people who made some specific changes to the query directly on OSS and do not want them to be deleted.
Update readme.txt

git-svn-id: https://plugins.svn.wordpress.org/opensearchserver-search/trunk@900696 b8457f37-d9ea-0310-8a92-e5e31aec5664