Run towncrier and bump version to 0.15.0 for release 

Run towncrier and bump version to 0.14.1 for release 

Run towncrier, copyedit README/docs, and bump version to 0.14.0 for r… …elease

Run towncrier and bump version to 0.13.0 for release 

stop test_cancel_sleep from deadlocking and less dependent on timer No need for `raise Exception` because we already assert the flag. fixes #103

Reconstruct some release history 

* Test failure workarounds 

* New release * Fix deprecation warnings * Fix cross-references in doc

YAPF'd 

Version 0.9.0