recurring 0.1.0

Schedules can be like: * Every Tuesday at 5pm * The 1st and 15th of every other month * Every 2 hours * The first Friday of every month at 11:15am and 4:45:15pm == FEATURES/PROBLEMS: = Features * Fast searching of long ranges for matching times. * Ability to define Schedules in a few flexible ways. * Extensive RSpec specifications (run "rake spec" to see them) * Extensive RSpec specifications (run "rake spec" to see them) = Problems / Todo * Untested timezone support * Plans to offer complex Schedule and Masks == SYNOPSYS: