Attach lubridate

[hammer]

From @hadley on the RStudio Discourse in January 2018:

The real question is why isn’t lubridate in core? The answer is that it currently conflicts (in a narrow sense) with too many base functions - in practice the lubridate functions extend or wrap the base alternatives so the conflict aren’t harmful in practice, but I haven’t had time to think through how this should be indicated in the tidyverse loading screen.

Figured I'd file an issue on GitHub in case there's any loading screen progress to track (that could perhaps be linked to this issue).

[hadley]

This has two components:

• dplyr and lubridate need to share the same definition of union, intersect and setdiff: Conflict between dplyr and lubridate for union, setdiff, intersect lubridate#693

• tidyverse needs to use the conflicted package instead of the current report: Automatically use conflicts #135. This is a fairly big change so I want a bit more time for conflicted in the wild before introducing it.

[mdancho84]

I second this request: lubridate is critical for working with date and datetime just as stringr is essential for working with chr and forcats is for fct. This would be a good change for many people that routinely work with timestamp data.

[hadley]

• Remove deprecated functions lubridate#705
• Conflict between dplyr and lubridate for union, setdiff, intersect lubridate#693