allow alternate uniform RNG
allow alternate uniform RNG

pombredanne/annoy,LongbinChen/annoy2,LongbinChen/annoy,subu-cliqz/annoy,subu-cliqz/annoy,Houzz/annoy2,spotify/annoy,codeaudit/annoy,eddelbuettel/annoy,guitarmind/annoy,guitarmind/annoy,LongbinChen/annoy,eddelbuettel/annoy,pombredanne/annoy,guitarmind/annoy,pombredanne/annoy,BeifeiZhou/annoy,tjrileywisc/annoy,spotify/annoy,subu-cliqz/annoy,tjrileywisc/annoy,eddelbuettel/annoy,LongbinChen/annoy2,codeaudit/annoy,codeaudit/annoy,BeifeiZhou/annoy,BeifeiZhou/annoy,tjrileywisc/annoy,LongbinChen/annoy2,eddelbuettel/annoy,Houzz/annoy2,Houzz/annoy2,LongbinChen/annoy,pombredanne/annoy,spotify/annoy,spotify/annoy,subu-cliqz/annoy,tjrileywisc/annoy