update dojo submodules for rewritten(!) dojo repositories
Creating a poweredByLink that plugins can have access to.
update dojo submodules for rewritten(!) dojo repositories
make escape key clear the location box it if it focused, references #269
fix missing arrayCopy in BigWig/RequestWorker.  surprisingly, this fixes #261
fix `prepare-refseqs.pl` for use with Bio::DB::Das::BioSQL
add support for a `track.initiallyPinned` configuration variable that, if set to true, makes the track pinned to the top when initially opened
remove unused dijitCheckedMenuItem usage from Browser.js
Added hook for per-feature filtering when rendering tracks.
Conflicts:

	src/JBrowse/View/Track/HTMLFeatures.js
Defined standard feature filters for filtering by strand.  Need to generalize soon so tracks can be passed other filters.
Added option to ignore global featureFilter for individual tracks via config.ignoreFeatureFilter.
TODO: might want to generalize this as a featureFilter hook that can specify per-track filter?
convert GenomeView to dojo/declare
convert Browser.js to dojo/declare
make GenomeView a JBrowse/Component, and make its constructor take an args object instead of positional args
wire up support for feature filtering at the level of the browser, the genomeview, and the track
add JBrowse/Util/FeatureFilters, a standard set of feature filters
make GenomeView configurable with `view.*` conf variables, add support for configuring maxPxPerBp
fix small track selector bug, fixes #271
make CanvasFeatures and HTMLFeatures tracks clear their layout in hideAll()
add a `trackSelector.initialSortColumn` configuration variable, fixes #270