[ref] set version to 0.9.0.b6

Signed-off-by: Kai Kreuzer <[email protected]>

[ref] set version to 0.9.0.b5

Signed-off-by: Kai Kreuzer <[email protected]>

[ref] set version to 0.9.0.b4

Signed-off-by: Kai Kreuzer <[email protected]>

[ref] set version to 0.9.0.b3

Signed-off-by: Kai Kreuzer <[email protected]>

[ref] set version to 0.9.0.b2

Signed-off-by: Kai Kreuzer <[email protected]>

[ref] set version to 0.8.0

Signed-off-by: Markus Rathgeb <[email protected]>

[ref] set version to 0.8.0.b5

Signed-off-by: Kai Kreuzer <[email protected]>

[ref] set version to 0.8.0.b4

Signed-off-by: Markus Rathgeb <[email protected]>

[ref] set version to 0.8.0.b3

Signed-off-by: Kai Kreuzer <[email protected]>