v1.3.4: Correct missing `$sniffer->indexExists`

Ref #126

Update version/readmes for v1.3.3 release

Update readme/module version for v1.3.2 release

Update readme/init for v1.3.1 release

Update versions to 1.3.0

Update versions for v1.2.1 release

Update readmes/module version for v1.2.0 release

Update readme/init for v1.1.0 release

Update readme/module-version for 1.0.5 release

Update readme/init for v1.0.4 release