Several changes to modernize this skill:
* Display of time is now controlled by a Skill Setting
* Add nice_time(), which formats 24-hour time better (e.g. "13 hundred")
* Add query for date or day of week
* Improve pronunciation by changing "timezone" to "time zone"
* Switched from Timer to using a repeating event
* Removed leading '0' from time display for 12-hour clock
* Update license to Apache 2.0, add .gitignore
* Removed unused libraries
* Update README
* Use new naming standards for .voc files