Update 2.1.5 release notes

Added all fixed bugs and short descriptions of the major changes.

Documentation/Release-Notes/MaxScale-2.1.5-Release-Notes.md

@@ -18,12 +18,26 @@ report at [Jira](https://jira.mariadb.org).
 
 ## Changed Features
 
+### SSL CA Certificates
+
+Before MaxScale 2.1.5, MaxScale would only use the first certificate file found
+in the CA certificate file. In MaxScale 2.1.5, the first certificate is loaded
+and the rest of the certificates on the file are stored in the chain store.
+
+This change should not cause any changes in MaxScale's behavior.
+
 ### Schemarouter
 
 Starting with MaxScale 2.1.5, the _schemarouter_ will prioritize the current
 database over an explicit database if tables in the the current database are
 used in a query.
 
+### Dbfwfilter
+
+The function type rule will now accept backtick quoted values. This allows
+keywords such as `insert` and `function` to be used as values for a function
+rule.
+
 ## New Features
 
 ### Schemarouter
@@ -40,9 +54,15 @@ will still go to the central database.
 
 ## Bug fixes
 
-[Here is a list of bugs fixed since the release of MaxScale 2.1.4.]
+[Here is a list of bugs fixed in MaxScale 2.1.5.]
 (https://jira.mariadb.org/issues/?jql=project%20%3D%20MXS%20AND%20issuetype%20%3D%20Bug%20AND%20status%20%3D%20Closed%20AND%20fixVersion%20%3D%202.1.5)
 
+* [MXS-1330](https://jira.mariadb.org/browse/MXS-1330) insertstream attempts to parse all buffers
+* [MXS-1329](https://jira.mariadb.org/browse/MXS-1329) Using filters with SSL and keep alive can cause errors
+* [MXS-1328](https://jira.mariadb.org/browse/MXS-1328) Strange behavior with routes between master / slaves
+* [MXS-1326](https://jira.mariadb.org/browse/MXS-1326) Upgrade error on Ubuntu Xenial
+* [MXS-1324](https://jira.mariadb.org/browse/MXS-1324) MaxScale 2.1.4 compiled without the avrorouter?
+* [MXS-1323](https://jira.mariadb.org/browse/MXS-1323) Maxscale2.1.3 coredump
 * [MXS-1319](https://jira.mariadb.org/browse/MXS-1319) Maxscale selecting extra whitespace while loading users
 * [MXS-1318](https://jira.mariadb.org/browse/MXS-1318) Use SSL_CTX_use_certificate_chain_file in Maxscale to use CA signed certificates
 * [MXS-1316](https://jira.mariadb.org/browse/MXS-1316) error using Kafka with binlog router
@@ -51,6 +71,7 @@ will still go to the central database.
 * [MXS-1311](https://jira.mariadb.org/browse/MXS-1311) Function type rule that blocks function results in syntax error
 * [MXS-1310](https://jira.mariadb.org/browse/MXS-1310) schemarouter ignores local copy of duplicate schemas on JOIN
 * [MXS-1309](https://jira.mariadb.org/browse/MXS-1309) ALTER TABLE detection is broken
+* [MXS-1285](https://jira.mariadb.org/browse/MXS-1285) cannot stat `/usr/share/maxscale/upstart/maxscale.conf': No such file or directory
 
 ## Known Issues and Limitations