Cut 0.19.2

Note that this will be merged into the release-0.19 branch and only
includes bug fixes, not other recent commits.

This is low-risk and contains critical bug fixes and should therefore
be released ASAP.

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 0.19.2 / 2016-05-29
+
+* [BUGFIX] Correctly handle `GROUP_LEFT` and `GROUP_RIGHT` without labels in
+  string representation of expressions and in rules.
+* [BUGFIX] Use `-web.external-url` for new status endpoints.
+
 ## 0.19.1 / 2016-05-25
 
 * [BUGFIX] Handle service discovery panic affecting Kubernetes SD

VERSION

@@ -1 +1 @@
-0.19.1
+0.19.2