Removed redundant triggers. Allowed null state transitions.
0.7.0
Revert "Removed redundant triggers. Allowed null state transitions."

This reverts commit 42ccf7dbca550717e660a29e6d7d4530729b2efb.
Revert "Revert "Removed redundant triggers. Allowed null state transitions.""

This reverts commit ae6e8eac528179c77f37dae1607d1303a0d62e01.
Revert "0.7.0"

This reverts commit 802dd888bbf73576df72605fb0215d2c8454515c.
0.6.2