Pre-build check and update.

config/deb/changelog

@@ -1,3 +1,34 @@
+percona-toolkit (2.2.1) unstable; urgency=low
+
+  * Official support for MySQL 5.6
+  * Official support for Percona XtraDB Cluster
+  * Redesigned pt-query-digest
+  * Redesigned pt-upgrade
+  * Redesigned pt-fk-error-logger
+  * Redesigned pt-deadlock-logger
+  * Changed --set-vars in all tools
+  * Renamed --retries to --tries in pt-online-schema-change
+  * Added MySQL options to pt-mysql-summary
+  * Added MySQL options to pt-stalk
+  * Removed --lock-wait-timeout from pt-online-schema-change (use --set-vars)
+  * Removed --lock-wait-timeout from pt-table-checksum (use --set-vars)
+  * Removed pt-query-advisor
+  * Removed pt-tcp-model
+  * Removed pt-trend
+  * Removed pt-log-player
+  * Enabled --version-check by default in all tools
+  * Fixed bug 1008796: Several tools don't have --database
+  * Fixed bug 1087319: Quoter::serialize_list() doesn't handle multiple NULL values
+  * Fixed bug 1086018: pt-config-diff needs to parse wsrep_provider_options
+  * Fixed bug 1056838: pt-fk-error-logger --run-time works differently than pt-deadlock-logger --run-time
+  * Fixed bug 1093016: pt-online-schema-change doesn't retry RENAME TABLE
+  * Fixed bug 1113301: pt-online-schema-change blocks on metadata locks
+  * Fixed bug 1125665: pt-stalk --no-stalk silently clobbers other options, acts magically
+  * Fixed bug 1019648: pt-stalk truncates InnoDB status if there are too many transactions
+  * Fixed bug 1087804: pt-table-checksum doesn't warn if no slaves are found
+
+ -- Percona Toolkit Developers <toolkit-dev@percona.com>  Thu, 14 Mar 2013 17:18:34 +0000
+
 percona-toolkit (2.1.9) unstable; urgency=low
 
   * Fixed bug 1103221: pt-heartbeat 2.1.8 doesn't use precision/sub-second timestamps