Servant 015 plus release (#71)

* relax servant & http-api-data versions

* release 0.2.0.9

Author: emmanueltouzery

slack-web.cabal

@@ -1,5 +1,5 @@
 name: slack-web
-version: 0.2.0.8
+version: 0.2.0.9
 
 build-type: Simple
 cabal-version: 1.21
@@ -47,12 +47,12 @@ library
       aeson >= 1.0 && < 1.5
     , base >= 4.11 && < 4.13
     , containers
-    , http-api-data >= 0.3 && < 0.4
+    , http-api-data >= 0.3 && < 0.5
     , http-client >= 0.5 && < 0.6
     , http-client-tls >= 0.3 && < 0.4
-    , servant >= 0.12 && < 0.15
-    , servant-client >= 0.12 && < 0.15
-    , servant-client-core >= 0.12 && < 0.15
+    , servant >= 0.12 && < 0.16
+    , servant-client >= 0.12 && < 0.16
+    , servant-client-core >= 0.12 && < 0.16
     , text >= 1.2 && < 1.3
     , transformers
     , mtl