Merge pull request #1 from malcolmw/master

Some work on write functionality
locate_eq now returns calculated travel times
Update prefor field of event table to reflect orid of new location.
Merge branch 'master' of https://github.com/amir-allam/PyLocEQ
Merge upstream changes to work on predicted arrival data output.
fixed updated traveltime calculation
Merge branch 'master' of https://github.com/amir-allam/PyLocEQ
Merge upstream functionality to output predicted arrival times.
fix typo
Merge branch 'master' of https://github.com/amir-allam/PyLocEQ
Merge typo-bug fix.
Fixed derivative calculation for locations at model boundaries
Merge branch 'master' of https://github.com/amir-allam/PyLocEQ
Merge upstream fucntionality for outputting predicted arrival data.
Work on write functionality for predarr table.
Work on write functionality for predarr table.
Add command line wrapper for processing CSS3.0 database using Antelope API.