with libbson and libmongoc 1.19.1

with libbson and libmongoc 1.19.0
drop patch merged upstream

with libbson and libmongoc 1.18.0
with libmongocrypt 1.2.1
raise dependency on PHP 7.1

with libbson and libmongoc 1.18.0alpha
with libmongocrypt 1.2.1dev

with libbson and libmongoc 1.17.4

with libbson and libmongoc 1.17.2
with libmongocrypt 1.0.4