CHANGED TO A MORE ADVANCED RTC LIB SUPPORTING ALARMS

Now depending on https://github.com/JChristensen/DS3232RTC and the time lib provided by http://www.pjrc.com/teensy/td_libs_Time.html
ADDED libraries DIRECTORY TO GITIGNORE FILE
USING INTERRUPT

Using interrupt to trigger the start of a wakeup sequence. The RTC interrupts when the time equals one of the alarms. After that it will only interrupt again after the alarm has been cleared. In order to make sure the interrupts are properly received it is important to make sure the alarms have been cleared in the RTC.