unbreak all the autobuilders

git-annex.cabal: Loosen bounds on persistent to allow 2.5, which on Debian
has been patched to work with esqueleto. This may break cabal's resolver on
non-Debian systems; if so, either use stack to build, or run cabal with
--constraint='persistent ==2.2.4.1' Hopefully this mess with esqueleto will
be resolved soon.

https://github.com/prowdsponsor/esqueleto/issues/137

CHANGELOG

@@ -1,3 +1,14 @@
+git-annex (6.20161112) UNRELEASED; urgency=medium
+
+  * git-annex.cabal: Loosen bounds on persistent to allow 2.5, which
+    on Debian has been patched to work with esqueleto.
+    This may break cabal's resolver on non-Debian systems;
+    if so, either use stack to build, or run cabal with 
+    --constraint='persistent ==2.2.4.1'
+    Hopefully this mess with esqueleto will be resolved soon.
+
+ -- Joey Hess <id@joeyh.name>  Tue, 15 Nov 2016 11:15:27 -0400
+
 git-annex (6.20161111) unstable; urgency=medium
 
   * Restarting a crashing git process could result in filename encoding

git-annex.cabal

@@ -359,10 +359,7 @@ Executable git-annex
    old-locale,
    esqueleto,
    persistent-sqlite, 
-   -- Old version needed due to
+   persistent,
-   -- https://github.com/prowdsponsor/esqueleto/issues/137
-   -- and also temporarily to make ghc 8 builds work
-   persistent (< 2.5),
    persistent-template,
    aeson,
    unordered-containers,