Gametime: Update

* Changed color of Watersday text to a lighter blue.
* Changed color of Iceday text to be distinguishable from Watersday.
* Changing alpha of Days no longer resets the color of moon phase.
* Added some synonymous commands for easier management of positioning.
-- //gt [days x [#]/daysx [#]/days posx [#] all do the same thing;
likewise for for daysy, timex, and timey.
Merge pull request #359 from thatdudegrim/master

Gametime update.