Fixed regression in 8c2ea7 affecting R2AxisAngle.
Fixed regression in 8c2ea7 affecting R2AxisAngle.

Again bitten by the different conventions regarding rotation matrices.
Eigen is not switching the rotation usage from passive to active when
converting from rotation matrix to axis angle representation while this
library does.

ethz-asl/Schweizer-Messer,ethz-asl/Schweizer-Messer,ethz-asl/Schweizer-Messer,ethz-asl/Schweizer-Messer