Update 5.0.1 to include a workaround for modules which fail to acquir…

…e the module lock when freeing contexts

Fix crash in RediSearch

Merge branch 'unstable' into RELEASE_0_9

release 0.9.5

bump version

Fix memory leak unsetting master

Bump version because we added new features

Bump the version to indicate this updated release has bug fixes.

bump version