tsibble v0.5.2

Bug fixes

• unnest.lst_ts respects the ordering of "key" values. (#56)
• split_by() and nest.tbl_ts() respect the appearance ordering of input variables. (#57)
• group_indices.tbl_ts() and key_indices() return consistent formats as its generic.
• Argument key no longer accepted character.

Improvements

• Slightly faster nest.tbl_ts().
• index_by() gives more informative error when LHS is named as index.

Changes catering for the updates in tibble

• No longer reexported as.tibble().
• Reexported tibble().