Update console and in-game weather commands to `weather <clear|rain|thunder> [duration in seconds] [WorldName]` and `toggle downfall [WorldName]` to match vanilla options and the updated `time` command parameter ordering as discussed in mc-server/Core#97. Merged weather console command code with in-game command code. Moved local `GetWorld()` and `GetConsoleWorld()` functions from time.lua to functions.lua, merged them, and made then global functions. Added `toggledownfall` console command to Info.lua and updated `weather` console command handler. Added notes to tps.lua to alert future coders to usage outside of the file.
Update Info.lua file, added comment to weather.lua
Updated README.md and Info.lua
Corrected ParameterCombinations in Info.lua
Add missing newline at end of file
Fixed comments, grammar
Changed TPS to a constant 20
Merge branch 'master' of https://github.com/jonfabe/Core into WeatherUpdate

Conflicts:
	Info.lua
	README.md
Merge pull request #102 from jonfabe/WeatherUpdate

Updates to the `weather` console and in-game commands