v0.5

Major updates since initial release

• Fix double critic initialization; always using target critic
• Fix MC return calculation in RWR (following RLPD)
• Switch to using terminated and truncated instead of done
• Add SAC, RLPD, Cal-QL, and IBRL implementation, tested with halfcheetah results

Minors

• Log training steps
• Rename transition_dim to action_dim
• Fix robomimic lowdim rendering issue

In progress (v1.0)

• Updating baseline results
• Modifications to DPPO updates with potential performance improvement