"Bottleneck version"

# Format expected by setup.py and doc/source/conf.py: string of form "X.Y.Z"
__version__ = "0.5.0rc1"

"Bottleneck version"

# Format expected by setup.py and doc/source/conf.py: string of form "X.Y.Z"
__version__ = "0.5.0rc2"

Bump version to 0.5.0rc2.