Merge branch 'cid30_changelog' into maint-0.2.2

changes/memleak_rendcache

@@ -0,0 +1,4 @@
+  o Minor bugfixes:
+    - Fix a memory leak when receiving a descriptor for a hidden
+      service we didn't ask for. Found by Coverity; CID#30. Bugfix on
+      0.2.2.26-beta.