Calendar template accessibility improvements

[GideonPARANOID]

An icon isn't enough for a lot of screenreaders to infer what an action does, so introduced captions for screenreaders to the table header previous/next buttons.

[dalelotts]

Thanks for the PR - please submit to develop and write a test for this feature per the contributing guidelines.

[dalelotts]

I also noticed that this will not work for any language other than english. How would you suggest supporting other languages?

[GideonPARANOID]

That's a good point. I guess how that is handled is dependent a bit on how the rest of the directive deals with language. Having had a look around, I don't see anything about language support. This probably wouldn't be too much work to get in, as Moment supports i18n.

Back to this case, I guess a lookup table would be the way I'd approach it, using something like this as a reference.

[dalelotts]

Yeah, this directive gets all of its L10n / i18n support from moment, so no additional logic has been needed. This would be the first change that will require some localization.

[GideonPARANOID]

I've put a few of these comments into action & opened a new pull request.