Update news for host summary views

Author: MarkLeith

NEWS.md

@@ -4,6 +4,14 @@
 
 ### Improvements
 
+* Added host summary views, which have the same structure as the user summary views, but aggregated by host instead
+   * `host_summary`
+   * `host_summary_by_file_io_type`
+   * `host_summary_by_file_io`
+   * `host_summary_by_statement_type`
+   * `host_summary_by_statement_latency`
+   * `host_summary_by_stages`
+
 ### Bug Fixes
 
 * Removed unintentially committed sys_56_rds.sql file (See Issue #5, which is still outstanding)
@@ -28,4 +36,4 @@
 * Some views did not work with the ERROR_FOR_DIVISION_BY_ZERO SQL mode. (#6) (Contributed by Joe Grasse)
 * On Windows the `ps_thread_stack()` stored function failed to escape file path backslashes correctly within the JSON output.
 
-## 1.0.0 (11/04/2004)
+## 1.0.0 (11/04/2004)