fix lxml requirement
fix lxml requirement

rishiloyola/bedrock,ckprice/bedrock,malena/bedrock,pmclanahan/bedrock,jpetto/bedrock,MichaelKohler/bedrock,CSCI-462-01-2017/bedrock,TheoChevalier/bedrock,MichaelKohler/bedrock,mermi/bedrock,SujaySKumar/bedrock,alexgibson/bedrock,elin-moco/bedrock,davidwboswell/documentation_autoresponse,petabyte/bedrock,amjadm61/bedrock,hoosteeno/bedrock,SujaySKumar/bedrock,petabyte/bedrock,kyoshino/bedrock,mozilla/mwc,mermi/bedrock,chirilo/bedrock,flodolo/bedrock,marcoscaceres/bedrock,gerv/bedrock,glogiotatidis/bedrock,analytics-pros/mozilla-bedrock,sgarrity/bedrock,davehunt/bedrock,TheJJ100100/bedrock,mermi/bedrock,bensternthal/bedrock,schalkneethling/bedrock,mozilla/bedrock,chirilo/bedrock,mozilla/mwc,CSCI-462-01-2017/bedrock,sylvestre/bedrock,marcoscaceres/bedrock,hoosteeno/bedrock,craigcook/bedrock,Jobava/bedrock,TheJJ100100/bedrock,alexgibson/bedrock,sgarrity/bedrock,mozilla/mwc,sgarrity/bedrock,TheoChevalier/bedrock,Jobava/bedrock,ericawright/bedrock,petabyte/bedrock,flodolo/bedrock,Sancus/bedrock,mozilla/mwc,SujaySKumar/bedrock,mahinthjoe/bedrock,dudepare/bedrock,hoosteeno/bedrock,craigcook/bedrock,bensternthal/bedrock,mkmelin/bedrock,bensternthal/bedrock,davehunt/bedrock,ericawright/bedrock,mmmavis/bedrock,Sancus/bedrock,CSCI-462-01-2017/bedrock,elin-moco/bedrock,marcoscaceres/bedrock,bensternthal/bedrock,malena/bedrock,mmmavis/bedrock,l-hedgehog/bedrock,glogiotatidis/bedrock,TheoChevalier/bedrock,jacshfr/mozilla-bedrock,l-hedgehog/bedrock,mkmelin/bedrock,gerv/bedrock,rishiloyola/bedrock,mmmavis/lightbeam-bedrock-website,l-hedgehog/bedrock,mermi/bedrock,TheoChevalier/bedrock,sylvestre/bedrock,gauthierm/bedrock,ckprice/bedrock,jgmize/bedrock,jacshfr/mozilla-bedrock,glogiotatidis/bedrock,MichaelKohler/bedrock,chirilo/bedrock,amjadm61/bedrock,gauthierm/bedrock,glogiotatidis/bedrock,schalkneethling/bedrock,davehunt/bedrock,TheJJ100100/bedrock,schalkneethling/bedrock,ckprice/bedrock,gerv/bedrock,andreadelrio/bedrock,pascalchevrel/bedrock,Jobava/bedrock,sylvestre/bedrock,jgmize/bedrock,davidwboswell/documentation_autoresponse,elin-moco/bedrock,dudepare/bedrock,rishiloyola/bedrock,mmmavis/lightbeam-bedrock-website,gauthierm/bedrock,kyoshino/bedrock,flodolo/bedrock,mozilla/bedrock,analytics-pros/mozilla-bedrock,ckprice/bedrock,mmmavis/bedrock,rishiloyola/bedrock,CSCI-462-01-2017/bedrock,analytics-pros/mozilla-bedrock,pmclanahan/bedrock,jgmize/bedrock,petabyte/bedrock,jacshfr/mozilla-bedrock,pmclanahan/bedrock,alexgibson/bedrock,Sancus/bedrock,jacshfr/mozilla-bedrock,SujaySKumar/bedrock,jpetto/bedrock,Jobava/bedrock,pascalchevrel/bedrock,yglazko/bedrock,pmclanahan/bedrock,mmmavis/lightbeam-bedrock-website,craigcook/bedrock,Sancus/bedrock,jpetto/bedrock,davidwboswell/documentation_autoresponse,pascalchevrel/bedrock,kyoshino/bedrock,yglazko/bedrock,amjadm61/bedrock,andreadelrio/bedrock,mmmavis/bedrock,davehunt/bedrock,yglazko/bedrock,alexgibson/bedrock,hoosteeno/bedrock,malena/bedrock,pascalchevrel/bedrock,ericawright/bedrock,mkmelin/bedrock,chirilo/bedrock,mahinthjoe/bedrock,amjadm61/bedrock,flodolo/bedrock,marcoscaceres/bedrock,mkmelin/bedrock,sylvestre/bedrock,elin-moco/bedrock,dudepare/bedrock,jacshfr/mozilla-bedrock,malena/bedrock,kyoshino/bedrock,gerv/bedrock,amjadm61/bedrock,mozilla/bedrock,yglazko/bedrock,sgarrity/bedrock,davidwboswell/documentation_autoresponse,andreadelrio/bedrock,jgmize/bedrock,TheJJ100100/bedrock,analytics-pros/mozilla-bedrock,mozilla/bedrock,jpetto/bedrock,mahinthjoe/bedrock,andreadelrio/bedrock,mahinthjoe/bedrock,craigcook/bedrock,schalkneethling/bedrock,MichaelKohler/bedrock,dudepare/bedrock,gauthierm/bedrock,ericawright/bedrock,l-hedgehog/bedrock