Emptying Redis databases as well before running an experiment. (#254)
Increasing positional matching threshold. (#254)

This is experimentally determined by running merge_algo dump several
times and examining the behaviour.
Implementing session affinity + fallback to temporal matching whenever spatial matching fails. (#254)
Using session affinity as the last fallback, after temporal matching. (#254)
Merge pull request #263 from ami-lab/b/#254-location-based-trajectory-merging

B/#254 location based trajectory merging