Bump version to 0.7.4
Bump version to 0.7.3
Fix compiler warning
Bump version to 0.7.1
Bump version to 0.7.0
Bump version to 0.6.2
Bump version to 0.6.0
Bump version to 0.5.3
Bump version to 0.5.2
Bump version to 0.5.1