Add libxml2-dev, libxslt1-dev so that lxml will build under pip
Add libxml2-dev, libxslt1-dev so that lxml will build under pip

hashbang/shell-etc,KellerFuchs/shell-etc,KellerFuchs/shell-etc,hashbang/shell-etc,hashbang/shell-etc,hashbang/shell-etc,KellerFuchs/shell-etc,hashbang/shell-etc,KellerFuchs/shell-etc,KellerFuchs/shell-etc,KellerFuchs/shell-etc,hashbang/shell-etc,hashbang/shell-etc,hashbang/shell-etc