Merge pull request #2 from saurabh-ar/master

main sketch fixed on board
added watchdog to main sketch
Merge pull request #3 from saurabh-ar/master

DS1307 RTC sample
fixed DH1307 sample and wip on main sketch
updated with alarms
fixed formatting of TimeAlarm.cpp
added gsm modem code and custom micro_delay function
gsmserial.begin & alarm.delay added