v0.5.1

DistributionsAD v0.5.1

Diff since v0.5.0

Closed issues:

• LoadError: UndefVarError: CUDAnative not defined (#67)
• rand is incorrect for FillVectorOfUnivariate is incorrect (#68)

Merged pull requests:

• Drop Zygote dependency and reformat code (#66) (@devmotion)
• Fix for #68 (#69) (@torfjelde)
• Few AD fixes and improvements (#70) (@mohamed82008)
• Fix #67 (#71) (@mohamed82008)