Update All Javscript Comments to Be JsDoc Compliant

[Watercycle]

In schedule.js, several of the functions are not using JSDOC (e.g. createBreak, convertTo12Hour, setHeight, etc). They should be updated to make use of JSDOC.

On that note, several functions (e.g. deleteEvent, dateToTimeString, saveCategory, etc) do not have any high level documentation at all. How thorough do we want to be?

[rjaltman]

We've since had PR #188 to address this issue, so perhaps we should check in again to make sure we addressed documentation as thoroughly as hoped. I know that a few people were closely observing the work done there, so they could probably tell the status of this a lot easier than I can at this point 😜.

[vkoves]

I'll take on reviewing this to see if we can close this issue.

[vkoves]

From looking at our JSDoc, it looks like everything has proper documentation :tada: I'll be closing this issue

[vkoves]

Based on my comment above, and Kyle completing scheduler documentation in #188, I am closing this