* fix(chalice): fixed Math-operators validation
refactor(chalice): search for sessions that have events for heatmaps
* refactor(chalice): search for sessions that have at least 1 location event for heatmaps
* fix(chalice): fixed Math-operators validation
refactor(chalice): search for sessions that have events for heatmaps
* refactor(chalice): search for sessions that have at least 1 location event for heatmaps
* feat(chalice): autocomplete return top 10 with stats
* fix(chalice): fixed autocomplete top 10 meta-filters
* fix(DB): fixed init schema
dev(DB): script to run init schema against dev servers
