Merge pull request #174 from alcaeus/prepare-1.1.0

Update changelog for 1.1.0

CHANGELOG-1.1.md

@@ -3,13 +3,17 @@ CHANGELOG
 
 This changelog references the relevant changes done in minor version updates.
 
-1.1.0-BETA1 (xxxx-xx-xx)
+1.1.0 (2017-05-13)
 ------------------
 
 All issues and pull requests under this release may be found under the
 [1.1.0](https://github.com/alcaeus/mongo-php-adapter/issues?q=milestone%3A1.1.0)
 milestone.
 
+ * [#173](https://github.com/alcaeus/mongo-php-adapter/pull/173) adds tests for
+ authentication options in `MongoClient`.
+ * [#168](https://github.com/alcaeus/mongo-php-adapter/pull/168) adds support for
+ `MongoCursor::explain()`.
  * [#128](https://github.com/alcaeus/mongo-php-adapter/pull/128) removes support
  for PHP 5.5.
  * [#127](https://github.com/alcaeus/mongo-php-adapter/pull/127) reads the `code`