clarify calendar and fix naming

Links are to guides on how to add to both gcal and ical.

inputted names are now maintained on the downloaded calendar

now looks like this:
![screenshot 2014-04-11 22 26 50](https://cloud.githubusercontent.com/assets/2801090/2686154/f6a6a9be-c1e9-11e3-875a-61580af16a9b.png)