Replace libxml2-dev dependency with zlib1g for nokogiri 1.6
nokogiri 1.6.x builds its own libxml2 during the gem installationprocess, so allow it to do that rather than link against the systemlibxml2.
Added by Dominic Cleal over 8 years ago
Replace libxml2-dev dependency with zlib1g for nokogiri 1.6
nokogiri 1.6.x builds its own libxml2 during the gem installation
process, so allow it to do that rather than link against the system
libxml2.