Created folder to hold analysis scripts

Also, started pickling arrays of values so that each attempt to run the
analyses does not require querying the database (while testing).
Improved script _plot_4's performance

Moved graphing process into functions to make it easier to alter.

Added option to DB_API that allow for the user to select all files
where the Connection_Type is NOT the specified value (for LTE vs
non-LTE)
removing scratch file
Compatibility fixes, etc. Will be more descriptive in next push!
Merge remote-tracking branch 'origin/peter' into feature_greenleaf