Fix typo and add more travis.ci packages
Fix typo and add more travis.ci packages

kernc/networkx,wasade/networkx,OrkoHunter/networkx,debsankha/networkx,debsankha/networkx,debsankha/networkx,dhimmel/networkx,beni55/networkx,jni/networkx,dmoliveira/networkx,RMKD/networkx,jfinkels/networkx,chrisnatali/networkx,michaelpacer/networkx,JamesClough/networkx,aureooms/networkx,bzero/networkx,SanketDG/networkx,dhimmel/networkx,RMKD/networkx,jakevdp/networkx,farhaanbukhsh/networkx,tmilicic/networkx,blublud/networkx,RMKD/networkx,ionanrozenfeld/networkx,Sixshaman/networkx,ghdk/networkx,kernc/networkx,farhaanbukhsh/networkx,ghdk/networkx,goulu/networkx,sharifulgeo/networkx,ionanrozenfeld/networkx,sharifulgeo/networkx,blublud/networkx,kernc/networkx,ltiao/networkx,cmtm/networkx,harlowja/networkx,dhimmel/networkx,jni/networkx,bzero/networkx,harlowja/networkx,harlowja/networkx,sharifulgeo/networkx,andnovar/networkx,jakevdp/networkx,NvanAdrichem/networkx,chrisnatali/networkx,aureooms/networkx,bzero/networkx,nathania/networkx,farhaanbukhsh/networkx,blublud/networkx,yashu-seth/networkx,jni/networkx,aureooms/networkx,ghdk/networkx,jcurbelo/networkx,dmoliveira/networkx,ionanrozenfeld/networkx,nathania/networkx,nathania/networkx,dmoliveira/networkx,chrisnatali/networkx,jakevdp/networkx