Upgrade django-extensions to 1.4.9.
Upgrade django-extensions to 1.4.9.

Changelist is too long to paste here, but I
confirmed that the parts we use still exist
and things still work.

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