V2.56: system time could go back to 1969 before sync with RTC

System time will go back to 1970 without RTC and fake-hwclock. By
having the timezone considered, it could actually go back to 1969.12.31.

wittyPi/daemon.sh

@@ -16,7 +16,7 @@ cur_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 # utilities
 . "$cur_dir/utilities.sh"
 
-log 'Witty Pi 2 daemon (v2.55) is started.'
+log 'Witty Pi daemon (v2.56) is started.'
 
 # halt by GPIO-4 (BCM naming)
 halt_pin=4

wittyPi/runScript.sh

@@ -24,7 +24,7 @@ schedule_file="$cur_dir/schedule.wpi"
 . "$cur_dir/utilities.sh"
 
 # pending until system time gets initialized
-while [[ "$(date +%Y)" == *"1970"* ]]; do
+while [[ "$(date +%Y)" == *"1969"* ]] || [[ "$(date +%Y)" == *"1970"* ]]; do
   sleep 1
 done
 

wittyPi/syncTime.sh

@@ -49,7 +49,7 @@ else
   if [[ $rtctime == *"1999"* ]] || [[ $rtctime == *"2000"* ]]; then
     # if you never set RTC time before
     log 'RTC time has not been set before (stays in year 1999/2000).'
-    if [[ $sysyear != *"1970"* ]]; then
+    if [[ $sysyear != *"1969"* ]] && [[ $sysyear != *"1970"* ]]; then
       # your Raspberry Pi has a decent time
       system_to_rtc
     else

wittyPi/wittyPi.sh

@@ -13,9 +13,9 @@ fi
 
 echo '================================================================================'
 echo '|                                                                              |'
-echo '|   Witty Pi 2 - Realtime Clock + Power Management for Raspberry Pi            |'
+echo '|   Witty Pi - Realtime Clock + Power Management for Raspberry Pi              |'
 echo '|                                                                              |'
-echo '|                   < Version 2.55 >     by UUGear s.r.o.                      |'
+echo '|                   < Version 2.56 >     by UUGear s.r.o.                      |'
 echo '|                                                                              |'
 echo '================================================================================'