Give Travis more time to build the package

.travis.yml

@@ -28,7 +28,7 @@ install:
 
 script:
  - cabal configure --enable-tests --enable-coverage -v2 -f dev
- - travis_wait 30 cabal build
+ - travis_wait 60 cabal build
  - cabal test --show-details=always
  - cabal sdist
  - cabal haddock | grep "100%" | wc -l | grep "8"