Add corosync to ubuntu-precise; resolves travis-ci/apt-package-whitelist#3117
Add corosync to ubuntu-precise; resolves travis-ci/apt-package-whitelist#3117

Packages: corosync corosync-notifyd corosync-doc corosync-dev libcfg6 libcmap4 libcorosync-common4 libcpg4 libquorum5 libsam4 libtotem-pg5 libvotequorum7 libcfg-dev libcmap-dev libcorosync-common-dev libcpg-dev libquorum-dev libsam-dev libtotem-pg-dev libvotequorum-dev

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