V.1.2.0 Release

[Eugene-hu]

Changes:

• Adds Direct Optimization (DPO) style rewards by @opentaco on Direct Preference Optimization (DPO) style rewards #99
• Changes print format on exception catch by @camfairchild on Need to use print exception instead #135
• Brings back netuid and wandb to logged config by @p-ferreira on Brings back netuid and wandb to logged config #137
• Adds DPO penalty update by @Eugene-hu on Dpo penalty update #138
• Adds original reward output to wandb logs by @isabella618033 on Add original reward to wandb #139
• Reweights reward models by @Eugene-hu on reweighting reward models #140
• Update stale documentation by @steffencruz on Removes stale sections from README #129