Cabal revisions of telegram-api-0.2.1.1

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 name:                telegram-api
 version:             0.2.1.1
+x-revision: 1
 synopsis:            Telegram Bot API bindings
 description:         High-level bindings to the Telegram Bot API
 homepage:            http://github.com/klappvisor/haskell-telegram-api#readme
   other-modules:       Web.Telegram.API.Bot.JsonExt
   build-depends:       base >= 4.7 && < 5
                      , aeson
-                     , servant
+                     , servant >= 0.4 && < 0.5
                      , servant-client
                      , text
-                     , either
+                     , either < 5
   default-language:    Haskell2010
+  other-extensions:    DeriveAnyClass
 
 test-suite telegram-api-test
   type:                exitcode-stdio-1.0