added real urls
added code for --current
fixed int in datetime
Merge branch 'master' of https://github.com/lindakukolich/sensor_data_exploration
added line_color, is_headliner, symbol
refactored to use populate module, also added line_color, kind & is_headliner
Merge branch 'master' of https://github.com/lindakukolich/sensor_data_exploration