make chebyshev lowercase for consistency
make chebyshev lowercase for consistency

shipci/sympy,mcdaniel67/sympy,moble/sympy,Shaswat27/sympy,jbbskinny/sympy,MechCoder/sympy,jerli/sympy,asm666/sympy,ga7g08/sympy,pbrady/sympy,Gadal/sympy,kmacinnis/sympy,moble/sympy,vipulroxx/sympy,liangjiaxing/sympy,Mitchkoens/sympy,meghana1995/sympy,beni55/sympy,atreyv/sympy,garvitr/sympy,hargup/sympy,grevutiu-gabriel/sympy,Davidjohnwilson/sympy,atsao72/sympy,sahmed95/sympy,diofant/diofant,toolforger/sympy,Titan-C/sympy,skidzo/sympy,kumarkrishna/sympy,cccfran/sympy,abloomston/sympy,maniteja123/sympy,abhiii5459/sympy,VaibhavAgarwalVA/sympy,bukzor/sympy,mafiya69/sympy,ChristinaZografou/sympy,kaushik94/sympy,lindsayad/sympy,AkademieOlympia/sympy,bukzor/sympy,Mitchkoens/sympy,meghana1995/sympy,hrashk/sympy,liangjiaxing/sympy,grevutiu-gabriel/sympy,saurabhjn76/sympy,madan96/sympy,pbrady/sympy,cswiercz/sympy,oliverlee/sympy,abloomston/sympy,drufat/sympy,Designist/sympy,sahilshekhawat/sympy,sampadsaha5/sympy,hrashk/sympy,cccfran/sympy,aktech/sympy,shipci/sympy,shikil/sympy,toolforger/sympy,amitjamadagni/sympy,lindsayad/sympy,chaffra/sympy,VaibhavAgarwalVA/sympy,AunShiLord/sympy,bukzor/sympy,beni55/sympy,wanglongqi/sympy,ahhda/sympy,MridulS/sympy,kmacinnis/sympy,Arafatk/sympy,MridulS/sympy,oliverlee/sympy,souravsingh/sympy,Curious72/sympy,sunny94/temp,pbrady/sympy,Shaswat27/sympy,iamutkarshtiwari/sympy,wyom/sympy,sampadsaha5/sympy,garvitr/sympy,cccfran/sympy,wanglongqi/sympy,shipci/sympy,vipulroxx/sympy,AunShiLord/sympy,chaffra/sympy,lidavidm/sympy,kaushik94/sympy,farhaanbukhsh/sympy,farhaanbukhsh/sympy,AkademieOlympia/sympy,liangjiaxing/sympy,abhiii5459/sympy,kevalds51/sympy,madan96/sympy,ChristinaZografou/sympy,aktech/sympy,Davidjohnwilson/sympy,souravsingh/sympy,jamesblunt/sympy,vipulroxx/sympy,ahhda/sympy,yukoba/sympy,pandeyadarsh/sympy,atreyv/sympy,sahilshekhawat/sympy,dqnykamp/sympy,abloomston/sympy,yashsharan/sympy,emon10005/sympy,debugger22/sympy,hargup/sympy,pandeyadarsh/sympy,emon10005/sympy,kumarkrishna/sympy,Designist/sympy,drufat/sympy,mafiya69/sympy,wyom/sympy,pandeyadarsh/sympy,AunShiLord/sympy,ChristinaZografou/sympy,Vishluck/sympy,jbbskinny/sympy,kumarkrishna/sympy,postvakje/sympy,dqnykamp/sympy,sunny94/temp,chaffra/sympy,saurabhjn76/sympy,yukoba/sympy,abhiii5459/sympy,iamutkarshtiwari/sympy,MridulS/sympy,drufat/sympy,wanglongqi/sympy,sahmed95/sympy,Titan-C/sympy,kaushik94/sympy,Mitchkoens/sympy,souravsingh/sympy,Vishluck/sympy,Designist/sympy,rahuldan/sympy,ga7g08/sympy,Gadal/sympy,Arafatk/sympy,Arafatk/sympy,MechCoder/sympy,postvakje/sympy,Davidjohnwilson/sympy,rahuldan/sympy,kaichogami/sympy,mcdaniel67/sympy,ahhda/sympy,yukoba/sympy,aktech/sympy,Vishluck/sympy,dqnykamp/sympy,ga7g08/sympy,atsao72/sympy,lindsayad/sympy,cswiercz/sympy,postvakje/sympy,hrashk/sympy,Curious72/sympy,maniteja123/sympy,wyom/sympy,meghana1995/sympy,flacjacket/sympy,asm666/sympy,shikil/sympy,mafiya69/sympy,Shaswat27/sympy,hargup/sympy,kaichogami/sympy,Gadal/sympy,atsao72/sympy,jerli/sympy,jbbskinny/sympy,AkademieOlympia/sympy,lidavidm/sympy,kaichogami/sympy,sampadsaha5/sympy,MechCoder/sympy,debugger22/sympy,jaimahajan1997/sympy,lidavidm/sympy,skidzo/sympy,skirpichev/omg,VaibhavAgarwalVA/sympy,Sumith1896/sympy,skidzo/sympy,kevalds51/sympy,iamutkarshtiwari/sympy,atreyv/sympy,sunny94/temp,Titan-C/sympy,oliverlee/sympy,sahmed95/sympy,jaimahajan1997/sympy,garvitr/sympy,debugger22/sympy,maniteja123/sympy,grevutiu-gabriel/sympy,Curious72/sympy,asm666/sympy,farhaanbukhsh/sympy,sahilshekhawat/sympy,cswiercz/sympy,yashsharan/sympy,kevalds51/sympy,amitjamadagni/sympy,jaimahajan1997/sympy,mcdaniel67/sympy,emon10005/sympy,shikil/sympy,madan96/sympy,kmacinnis/sympy,rahuldan/sympy,Sumith1896/sympy,beni55/sympy,toolforger/sympy,saurabhjn76/sympy,jamesblunt/sympy,Sumith1896/sympy,moble/sympy,jamesblunt/sympy,jerli/sympy,yashsharan/sympy