Remove zulip.egg-info from .gitignore.
Remove zulip.egg-info from .gitignore.

We've been seeing failures in Travis CI like this:
https://travis-ci.org/zulip/zulip/jobs/175921132, which seem to be
caused by an issue with .gitignore handing.  This seems to fix the
problem, though I don't yet understand why.

This reverts 7c0970d1717360756ad008ac1bc2a91b9ec7c1e9.

jrowan/zulip,zacps/zulip,JPJPJPOPOP/zulip,zulip/zulip,vabs22/zulip,punchagan/zulip,zulip/zulip,dhcrzf/zulip,andersk/zulip,amanharitsh123/zulip,KingxBanana/zulip,dattatreya303/zulip,christi3k/zulip,aakash-cr7/zulip,tommyip/zulip,amanharitsh123/zulip,grave-w-grave/zulip,blaze225/zulip,tommyip/zulip,PhilSk/zulip,KingxBanana/zulip,jrowan/zulip,Diptanshu8/zulip,showell/zulip,vabs22/zulip,punchagan/zulip,TigorC/zulip,Juanvulcano/zulip,dhcrzf/zulip,rishig/zulip,amyliu345/zulip,mahim97/zulip,Juanvulcano/zulip,brainwane/zulip,verma-varsha/zulip,amyliu345/zulip,calvinleenyc/zulip,reyha/zulip,timabbott/zulip,zulip/zulip,jackrzhang/zulip,isht3/zulip,vaidap/zulip,rht/zulip,brainwane/zulip,christi3k/zulip,peguin40/zulip,AZtheAsian/zulip,peguin40/zulip,dattatreya303/zulip,arpith/zulip,susansls/zulip,aakash-cr7/zulip,showell/zulip,SmartPeople/zulip,niftynei/zulip,tommyip/zulip,joyhchen/zulip,verma-varsha/zulip,joyhchen/zulip,shubhamdhama/zulip,KingxBanana/zulip,synicalsyntax/zulip,j831/zulip,paxapy/zulip,kou/zulip,mahim97/zulip,dawran6/zulip,peguin40/zulip,amyliu345/zulip,eeshangarg/zulip,cosmicAsymmetry/zulip,dhcrzf/zulip,sonali0901/zulip,susansls/zulip,hackerkid/zulip,ryanbackman/zulip,grave-w-grave/zulip,aakash-cr7/zulip,zulip/zulip,AZtheAsian/zulip,Diptanshu8/zulip,andersk/zulip,rishig/zulip,JPJPJPOPOP/zulip,joyhchen/zulip,verma-varsha/zulip,timabbott/zulip,Diptanshu8/zulip,grave-w-grave/zulip,AZtheAsian/zulip,synicalsyntax/zulip,ryanbackman/zulip,blaze225/zulip,vabs22/zulip,PhilSk/zulip,calvinleenyc/zulip,SmartPeople/zulip,susansls/zulip,Juanvulcano/zulip,SmartPeople/zulip,hackerkid/zulip,grave-w-grave/zulip,isht3/zulip,blaze225/zulip,jrowan/zulip,PhilSk/zulip,cosmicAsymmetry/zulip,andersk/zulip,grave-w-grave/zulip,hackerkid/zulip,kou/zulip,JPJPJPOPOP/zulip,brainwane/zulip,brainwane/zulip,hackerkid/zulip,rht/zulip,vikas-parashar/zulip,dawran6/zulip,rht/zulip,reyha/zulip,zacps/zulip,arpith/zulip,j831/zulip,shubhamdhama/zulip,hackerkid/zulip,reyha/zulip,kou/zulip,vikas-parashar/zulip,niftynei/zulip,mahim97/zulip,blaze225/zulip,dhcrzf/zulip,amanharitsh123/zulip,paxapy/zulip,samatdav/zulip,christi3k/zulip,mahim97/zulip,kou/zulip,dhcrzf/zulip,Jianchun1/zulip,brainwane/zulip,reyha/zulip,souravbadami/zulip,JPJPJPOPOP/zulip,peguin40/zulip,j831/zulip,tommyip/zulip,AZtheAsian/zulip,jainayush975/zulip,calvinleenyc/zulip,Diptanshu8/zulip,vabs22/zulip,synicalsyntax/zulip,vikas-parashar/zulip,dattatreya303/zulip,jrowan/zulip,arpith/zulip,TigorC/zulip,eeshangarg/zulip,calvinleenyc/zulip,synicalsyntax/zulip,rht/zulip,Galexrt/zulip,blaze225/zulip,amanharitsh123/zulip,KingxBanana/zulip,vabs22/zulip,mahim97/zulip,shubhamdhama/zulip,dawran6/zulip,mahim97/zulip,vabs22/zulip,j831/zulip,sharmaeklavya2/zulip,brockwhittaker/zulip,niftynei/zulip,christi3k/zulip,synicalsyntax/zulip,shubhamdhama/zulip,samatdav/zulip,JPJPJPOPOP/zulip,Jianchun1/zulip,jackrzhang/zulip,isht3/zulip,isht3/zulip,SmartPeople/zulip,rishig/zulip,dawran6/zulip,souravbadami/zulip,samatdav/zulip,jackrzhang/zulip,souravbadami/zulip,Juanvulcano/zulip,amyliu345/zulip,grave-w-grave/zulip,jrowan/zulip,timabbott/zulip,niftynei/zulip,dawran6/zulip,vaidap/zulip,cosmicAsymmetry/zulip,sharmaeklavya2/zulip,punchagan/zulip,sharmaeklavya2/zulip,showell/zulip,eeshangarg/zulip,KingxBanana/zulip,paxapy/zulip,hackerkid/zulip,reyha/zulip,showell/zulip,SmartPeople/zulip,jphilipsen05/zulip,zacps/zulip,zacps/zulip,jainayush975/zulip,jphilipsen05/zulip,KingxBanana/zulip,kou/zulip,samatdav/zulip,arpith/zulip,arpith/zulip,Juanvulcano/zulip,kou/zulip,rht/zulip,ryanbackman/zulip,Galexrt/zulip,aakash-cr7/zulip,susansls/zulip,rishig/zulip,souravbadami/zulip,arpith/zulip,rishig/zulip,vikas-parashar/zulip,rishig/zulip,SmartPeople/zulip,PhilSk/zulip,rishig/zulip,punchagan/zulip,j831/zulip,TigorC/zulip,showell/zulip,shubhamdhama/zulip,eeshangarg/zulip,punchagan/zulip,vaidap/zulip,Jianchun1/zulip,verma-varsha/zulip,dhcrzf/zulip,Jianchun1/zulip,Galexrt/zulip,jainayush975/zulip,timabbott/zulip,amyliu345/zulip,brockwhittaker/zulip,Galexrt/zulip,jphilipsen05/zulip,TigorC/zulip,vikas-parashar/zulip,TigorC/zulip,ryanbackman/zulip,joyhchen/zulip,shubhamdhama/zulip,dhcrzf/zulip,brockwhittaker/zulip,dawran6/zulip,vikas-parashar/zulip,synicalsyntax/zulip,niftynei/zulip,dattatreya303/zulip,susansls/zulip,isht3/zulip,calvinleenyc/zulip,sonali0901/zulip,amanharitsh123/zulip,hackerkid/zulip,zulip/zulip,aakash-cr7/zulip,ryanbackman/zulip,cosmicAsymmetry/zulip,eeshangarg/zulip,christi3k/zulip,aakash-cr7/zulip,susansls/zulip,reyha/zulip,amanharitsh123/zulip,jackrzhang/zulip,brockwhittaker/zulip,Diptanshu8/zulip,timabbott/zulip,jrowan/zulip,jphilipsen05/zulip,cosmicAsymmetry/zulip,showell/zulip,samatdav/zulip,tommyip/zulip,christi3k/zulip,brainwane/zulip,zacps/zulip,jackrzhang/zulip,punchagan/zulip,Galexrt/zulip,brockwhittaker/zulip,sharmaeklavya2/zulip,blaze225/zulip,shubhamdhama/zulip,eeshangarg/zulip,zacps/zulip,joyhchen/zulip,niftynei/zulip,kou/zulip,JPJPJPOPOP/zulip,andersk/zulip,sonali0901/zulip,peguin40/zulip,rht/zulip,brockwhittaker/zulip,jainayush975/zulip,timabbott/zulip,andersk/zulip,sharmaeklavya2/zulip,Jianchun1/zulip,dattatreya303/zulip,Jianchun1/zulip,paxapy/zulip,sonali0901/zulip,verma-varsha/zulip,PhilSk/zulip,paxapy/zulip,andersk/zulip,verma-varsha/zulip,j831/zulip,AZtheAsian/zulip,ryanbackman/zulip,TigorC/zulip,AZtheAsian/zulip,Juanvulcano/zulip,Galexrt/zulip,jphilipsen05/zulip,sonali0901/zulip,isht3/zulip,timabbott/zulip,paxapy/zulip,synicalsyntax/zulip,jackrzhang/zulip,jainayush975/zulip,amyliu345/zulip,andersk/zulip,jainayush975/zulip,souravbadami/zulip,PhilSk/zulip,peguin40/zulip,sharmaeklavya2/zulip,Galexrt/zulip,punchagan/zulip,zulip/zulip,sonali0901/zulip,rht/zulip,eeshangarg/zulip,joyhchen/zulip,vaidap/zulip,zulip/zulip,vaidap/zulip,tommyip/zulip,Diptanshu8/zulip,dattatreya303/zulip,brainwane/zulip,tommyip/zulip,vaidap/zulip,showell/zulip,jackrzhang/zulip,cosmicAsymmetry/zulip,calvinleenyc/zulip,samatdav/zulip,souravbadami/zulip,jphilipsen05/zulip