Check that gps_start < gps_end in various executables
This MR in intended to do some sanity checking on the start/end times passed in to various executables, to avoid obtuse errors such as #74 (closed).
Closes #74 (closed).
This MR in intended to do some sanity checking on the start/end times passed in to various executables, to avoid obtuse errors such as #74 (closed).
Closes #74 (closed).