Relax upper bound on turtle from < 1.6 to < 1.7 (#60)

CHANGELOG.md

@@ -7,6 +7,7 @@
   no longer supports them as of hnix-0.15.
 - Support hnix-0.15 and hnix-0.16.
 - Support and require optparse-generic-1.4.0 or higher.
+- Support turtle-1.6
 
 ## 1.0.7
 ### Changed

hocker.cabal

@@ -102,7 +102,7 @@ library
                 text                 >= 1.2,
                 time                 >= 1.4,
                 transformers         >= 0.4,
-                turtle               >= 1.3.0 && < 1.6,
+                turtle               >= 1.3.0 && < 1.7,
                 unordered-containers >= 0.2,
                 uri-bytestring       >= 0.2,
                 vector               >= 0.11,