update conda build
post-release
update version
update to 0.4.2
bump to 0.4.1
[Release] Fix Conda CMake flags (dmlc#907) * [Release] Fix CMake flags * more fix
[CI] enable tutorial test in CI. (dmlc#631) * enable tutorial test in CI. * reduce overhead.
Merge branch 'master' of github.com:zzhang-cn/dgl into 0.2.x