Release v1.6.0 (#324)

* Update version and changelog for v1.6.0
* Update docs
diff --git a/docs/dyn/genomics_v1.operations.html b/docs/dyn/genomics_v1.operations.html
index b4684a9..590e9f2 100644
--- a/docs/dyn/genomics_v1.operations.html
+++ b/docs/dyn/genomics_v1.operations.html
@@ -147,7 +147,7 @@
 Args:
   name: string, The name of the operation collection. (required)
   pageSize: integer, The maximum number of results to return. If unspecified, defaults to 256. The maximum value is 2048.
-  filter: string, A string for filtering Operations. The following filter fields are supported: * projectId: Required. Corresponds to OperationMetadata.projectId. * createTime: The time this job was created, in seconds from the [epoch](http://en.wikipedia.org/wiki/Unix_time). Can use `>=` and/or `= 1432140000` * `projectId = my-project AND createTime >= 1432140000 AND createTime <= 1432150000 AND status = RUNNING`
+  filter: string, A string for filtering Operations. The following filter fields are supported: * projectId: Required. Corresponds to OperationMetadata.projectId. * createTime: The time this job was created, in seconds from the [epoch](http://en.wikipedia.org/wiki/Unix_time). Can use `>=` and/or `= 1432140000` * `projectId = my-project AND createTime >= 1432140000 AND createTime <= 1432150000 AND status = RUNNING` * `projectId = my-project AND labels.color = *` * `projectId = my-project AND labels.color = red`
   pageToken: string, The standard list page token.
   x__xgafv: string, V1 error format.