Add libpugixml1v5 to ubuntu-precise; resolves travis-ci/apt-package-whitelist#2394
Add libpugixml1v5 to ubuntu-precise; resolves travis-ci/apt-package-whitelist#2394

Packages: libpugixml1v5 libpugixml-dev libpugixml1v5-dbg pugixml-doc

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