Bump version in release.py to 1.0.1.dev
Bump version in release.py to 1.0.1.dev

chaffra/sympy,madan96/sympy,drufat/sympy,yashsharan/sympy,postvakje/sympy,mafiya69/sympy,drufat/sympy,rahuldan/sympy,chaffra/sympy,skidzo/sympy,yashsharan/sympy,rahuldan/sympy,mafiya69/sympy,kaushik94/sympy,jerli/sympy,Titan-C/sympy,skidzo/sympy,jaimahajan1997/sympy,Titan-C/sympy,hargup/sympy,souravsingh/sympy,drufat/sympy,sampadsaha5/sympy,yashsharan/sympy,souravsingh/sympy,rahuldan/sympy,souravsingh/sympy,ChristinaZografou/sympy,sampadsaha5/sympy,aktech/sympy,chaffra/sympy,kaushik94/sympy,jerli/sympy,jaimahajan1997/sympy,Titan-C/sympy,skidzo/sympy,aktech/sympy,ChristinaZografou/sympy,postvakje/sympy,hargup/sympy,mafiya69/sympy,sampadsaha5/sympy,postvakje/sympy,aktech/sympy,hargup/sympy,ChristinaZografou/sympy,jerli/sympy,jaimahajan1997/sympy,kaushik94/sympy,madan96/sympy,madan96/sympy