merged geo_stream_live & geo_steam_static scripts into new geo_stream.pl to handle both situations; removed superfluous 'simulation' field due to -s flag required for 'static' option, also a 'true' deduct_time value automatically enables simulation
removed unnecessary get_sim_start_time method, $sim_start_time defined as :reader; removed 1 block level, decode_line() method returns if no data; moved logging function into own method; code tidy & documentation
live stream needs to set sim start time before any location data is sent so script can still function when restarted when sim is running; renamed some variables for clarity; refactored message string to include time of day + sim running time
