Bump version: 1.1.0-dirty → 1.1.1

Patch release to have debian/patches/build-for-debian8.patch applying
correctly again.

Change-Id: I27caf077abc400e9661549886bb8f7827dd299bb
diff --git a/debian/patches/build-for-debian8.patch b/debian/patches/build-for-debian8.patch
index 6b917c4..cce063c 100644
--- a/debian/patches/build-for-debian8.patch
+++ b/debian/patches/build-for-debian8.patch
@@ -7,7 +7,7 @@
                 libtalloc-dev,
                 libusrp-dev,
 -               liblimesuite-dev,
-                libosmocore-dev (>= 0.10.0),
+                libosmocore-dev (>= 0.12.0),
                 osmo-gsm-manuals-dev
  Standards-Version: 3.9.6
 @@ -30,7 +29,7 @@ Package: osmo-trx-dbg