updated gitignore to ignore json explosion error log file
updated gitignore to ignore json explosion error log file

Sumei1009/HubTurbo,gaieepo/HubTurbo,HyungJon/HubTurbo,Sumei1009/HubTurbo,ianngiaw/HubTurbo,saav/HubTurbo,saav/HubTurbo,HyungJon/HubTurbo,gaieepo/HubTurbo,ianngiaw/HubTurbo