Modifying Travis CI to use an explict path for cabal.

Author: recursion-ninja

.travis.yml

@@ -15,11 +15,11 @@ ghc:
   - "7.10.3"
 
 install:
-  - cabal new-configure
-  - cabal new-install --only-dependencies
+  - /opt/cabal/bin/cabal-2.2 new-configure
+  - /opt/cabal/bin/cabal-2.2 new-install --only-dependencies
 
 script:
-  - cabal new-build
-  - cabal new-sdist
-  - cabal new-check
-  - cabal new-haddock
+  - /opt/cabal/bin/cabal-2.2 new-build
+  - /opt/cabal/bin/cabal-2.2 new-sdist
+  - /opt/cabal/bin/cabal-2.2 new-check
+  - /opt/cabal/bin/cabal-2.2 new-haddock

mono-traversable-keys.cabal

@@ -17,7 +17,7 @@ description:
   <http://hackage.haskell.org/package/mono-traversable mono-traversable> and
   <http://hackage.haskell.org/package/keys keys>,
   designed to provided the functionality of the @keys@ package to the monomorphic
-  containers enhanced by the @mono-trversable@ package.
+  containers enhanced by the @mono-traversable@ package.
 
 extra-source-files:
   README.md