Add libnotify-dev to ubuntu-precise; resolves travis-ci/apt-package-whitelist#2216
Add libnotify-dev to ubuntu-precise; resolves travis-ci/apt-package-whitelist#2216

Packages: libnotify-dev libnotify4 libnotify-bin libnotify-doc gir1.2-notify-0.7

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