Adding Timezone class
Updating constructor arguments to comply with the native Time class
Changing #to_s to `%Y-%m-%d %H:%M:%S %z` format
Adding #to_a method similar to Time#to_a
Updating #to_utc and #to_i to reflect new underlying logic
Attributes (#minute, #hour etc) now return local time, not GMT
#beginning_of_week now returns Monday midnight, not same time Monday
Adding #yday similar to Time#yday
Updating YARD docs
Updating path in spec_helper
Adding new specs