Make join work inplace

Fix opt crash

Update NEWS_DEV.txt and .mailmap

Python2 3

Skip another test when cxx isn't available.

Still merge identical Asserts while Assert merging is disabled

Try to get_scalar_constant_value for Assert nodes

Remove isnan from the graph for discrete dtype.

Although the fancy merging of conditions is disabled, identical Asserts
can still be combined. See #3344.

close file with context manager

Conda fixes

GPU gemv->dot speedup for new backend

Jenkins release scripts