Make sure to close a connection to any deleted database
Fixed a bug in the process of selecting between recipient units that are exactly the same distance from the source of exposure. Checkin includes a new test case that shows the bug.
Disable protocol tab on checkbox.  New Javascript closes #226.
Zipping map output file and offering a link in the results summary.  #181
Scenario database is no longer opened in WAL mode.
Merge branch 'master' into Windows