1.11.3 - Fixed DS3231 weekly alarms

Bump to 1.11.3

1.11.2 - Improved `operator==()` and `operator<()` efficiency

Thanks @Harrison-O for the awesome PR!

1.11.1 - Added alarm demo, updated reame

Alarm demo and Readme updates thanks to @vinhill, bugfix thanks to @edgar-bonet

1.11.0 - Added start and stop functionality for PCF8523

Bump to 1.11.0

1.10.0 - Added function for 32KHz output, made iso8601 datetime constructor more tolerant

Bump to 1.10.0

1.9.0 - Added DateTime constructor that takes an ISO8601 formatted string

Thanks @gounselor for the PR

1.8.0 - New example, new behavior when serial is not found

• Added a new example on using interrupts for timekeeping - Thanks @edgar-bonet
• Ensured that a serial message is printed and there is proper termination when RTC is not found - Thanks @colindgrant

1.7.0 - Verify comms in PCF8523 and DS1307 begin(), update keywords

This release is courtesy of contributor @colindgrant

1.6.0 - lostPower() and countdown timer support for PCF8523

Thanks to @colindgrant for the following contributions:

• Consistent time setting statements across examples
• Adding RTC_PCF8523::lostPower()
• Adding countdown timer support for PCF8523 with example

1.5.0 - Actions, Docs, 12-hour, and Bug Fixes, oh My!

12-hour support thanks to @jadonmmiller
Massively expanded docs for DateTime, validator method, and bugfixes thanks to @edgar-bonet
examples bugfixes thanks to @colindgrant