This adds an analysis script (not functioning yet)

problem: line 31 inexplicably appends to all the ts_list's in the metaData dictionary.
This commit adds working ability to read all timestamps into a JSON from the serial port. It saves them by default as a json.dump to /var/tmp/time.json
this commit adds a timeline plot with nodes for each trigger plot along a datetime axis.
* Improved argparse, should eventually do it proper with a subparser
Merge pull request #1 from peter-macdonald/Analyze_This

it works!