Add pickle handler for Shapely. Other changes
allow a greater number of samples when use_samples_val is set

also, add some data compression
clean up comment
bug fixes

- replace unix functionality when killing the run
- handle error when data is NaN in PDF
- When using subfolders, allow the run to continue if the subfolders
already exist
- Enable printing stack trace again in util when processing data
Add a few time stamps. Clean up unused time cmd.
Add ability to get a pdf from the output and plot.
Fix bug in Morris due to SALib upgrade
gitignore
try to fix deadlock bug (#79)

Also update docs
fix mistake on acquiring lock
Show parameter samples in puq analyze
Add some checks to extending MC, LHS, Morris
Remove some comments
Update docs
Return error if collecting data from a sweep fails
Fix another issue with jsonpickle

jsonpickle still has trouble unpickling some sweep objects sometimes.
Made some changes so that copies are made of objects so that jsonpickle
stores the whole object instead of a reference to it
Merge pull request #2 from zoidy/puq-wiggly-newom

Puq wiggly newom