vobsub v0.1.2: Extensively fuzz-test and fix bugs
vobsub v0.1.2: Extensively fuzz-test and fix bugs

This release fixes 5 bugs found by `cargo fuzz`, and adds support for
certain subtitles generated by Subtitle Edit.

emk/substudy,emk/substudy,emk/substudy,emk/substudy,emk/substudy