Add ellipsis and no-ellipsis utilities

[benface]

Resolves #377

[adamwathan]

I think this is probably good, my only hesitation is around whether or not we should be future proofing to support text-overflow: <string> or text-overflow: fade. Any thoughts?

[pnadon]

I am also interested in this issue, I find that I need to truncate long segments of text, which should still fill their container and not just truncate at the end of the first line.

[benface]

@adamwathan Yeah, I don't know. I was under the impression that those would not be available in browsers anytime soon, but I could be wrong. I can change this PR to use the utility names text-overflow-ellipsis and text-overflow-clip if you prefer that.

@pnadon text-overflow only truncates text on a per-line basis. I think you are looking for line-clamp; someone else made a feature request here: #1303

[adamwathan]

@benface Finally coming back to this, what about overflow-ellipsis and overflow-clip? Collides with the regular overflow utilities a bit but whatever, people write text-sm text-black and don't complain about it.

[adamwathan]

Merged this manually on the command line, thanks!

[benface]

Oh hey thanks @adamwathan and sorry for not replying to your earlier comment! I was gonna update my PR (I totally agree with overflow-ellipsis and overflow-clip) but I'm having a busy week...