Add libghc-sha-dev to ubuntu-precise; resolves travis-ci/apt-package-whitelist#1666
Add libghc-sha-dev to ubuntu-precise; resolves travis-ci/apt-package-whitelist#1666

Packages: libghc-sha-dev libghc-sha-prof libghc-sha-doc

travis-ci/apt-package-whitelist,travis-ci/apt-package-whitelist