v0.3.1

Unfold v0.3.1

Diff since v0.2.0

Closed issues:

• Fix Documentation (#34)
• typo in fit.jl test (#38)
• LoadError: Lines not defined while using plot.jl (#39)

Merged pull requests:

• Corrected standard error calculations (#37) (@Zebrakopf)
• add research notice (#40) (@yochannah)
• Restructure (#45) (@behinger)
• BasisFunction restructure (#46) (@behinger)
• fix Project.toml (#47) (@palday)