FEATURE REQUEST: Batch video export

[joshuabardwell]

It would be really really helpful to have batch export of videos rather than having to load each one individually. Coming back from the field with an SD card full of logs and having to open and export each one, one at a time, is really time consuming especially given how slow the Java exporter is. Would be really good to be able to load up a queue and come back overnight and have them just done.