Remove hmatrix upper bound

.travis.yml

@@ -44,9 +44,7 @@ install:
 # Here starts the actual work to be performed for the package under test; any command which exits with a non-zero exit code causes the build to fail.
 script:
  - |
-   if [ ${GHCVER%.*} = "7.8" ]; then
-     travis_retry ./build.sh all
-   elif [ ${GHCVER%.*} = "7.10" ]; then
+   if [[ ${GHCVER%.*} == "7.8" || ${GHCVER%.*} == "7.10" ]]; then
      travis_retry ./build.sh all
    else
      travis_retry ./build.sh ihaskell

ihaskell-display/ihaskell-plot/ihaskell-plot.cabal

@@ -61,7 +61,7 @@ library
   build-depends:       base >=4.6 && <4.9,
                        plot,
                        bytestring,
-                       hmatrix >= 0.10 && <0.17,
+                       hmatrix >= 0.10,
                        ihaskell >= 0.6.2
   
   -- Directories containing source files.