simplify implementation of statically chunked sequence store, paving the way for other stores to contain chunked reference sequences
refactor sequence search as a plugin called SequenceSearch
make SequenceSearch RegexSearch store throw DataOverflow exceptions when search regions get too big
in BlockBased, only log errors to the console when they are fatal
rename SequenceSearch plugin to RegexSequenceSearch
simplify region-too-big error message
update release notes
make dropdown menu rendering happen after init view, so that plugins can add things to the bottoms of the menus