Fix packaging to ensure that everything is included in the sdist
Fix packaging to ensure that everything is included in the sdist

chopmann/warehouse,dstufft/warehouse,pypa/warehouse,wlonk/warehouse,dstufft/warehouse,alex/warehouse,chopmann/warehouse,pypa/warehouse,alex/warehouse,dstufft/warehouse,karan/warehouse,ismail-s/warehouse,HonzaKral/warehouse,ismail-s/warehouse,chopmann/warehouse,karan/warehouse,alex/warehouse,dstufft/warehouse,HonzaKral/warehouse,karan/warehouse,ismail-s/warehouse,ismail-s/warehouse,alex/warehouse,pypa/warehouse,karan/warehouse,wlonk/warehouse,karan/warehouse,alex/warehouse,wlonk/warehouse,HonzaKral/warehouse,ismail-s/warehouse,HonzaKral/warehouse,pypa/warehouse