New features:

+ Added HEX Support (#rrggbb)
+ Added a new command /stimer modify
- Commands such as add, pause, and others were removed to add it as a "modifier" to the new command " /stimer modify <ID> <modifiers>"
+ Added a new sub command modifier to take time from timers /stimer modify <ID> take <HH:MM:SS>
+ Added new sub commands modifier to set the maximum and minimum value of a timer: "/stimer modify <ID> maxvalue <HH:MM:SS>" and "/stimer modify <ID> minvalue <HH:MM:SS>"