Merge pull request #3441 from WormBase/246_feature_image

progress towards a sequence-feature specific image on the gene page
fix breaking interaction page without interactors #3439
remove associated seq feature widget on seq feature page #3161
Merge branch '246-bugs' into staging
enable feature interactors in cytoscape display #3318
add links to ParaSite from toolbar #3311
Merge branch '246-link-to-parasite' into staging
add padding for seq feature for gbrowse coordinates #3161
* gbrowse window  50 before and after if feature length < 100
* gbrowse image 500 before and after
refactor code for genomic position and image code #3161
direct gbrowse links to staging when running on dev installation
Merge pull request #3451 from WormBase/246-seq-feature

246 seq feature fixes
display feature in rectangle in cytoscape #3318
fix interaction widget not loading to to cytoscapejs error #3318 #3353
Merge branch '246-interactions' into staging
limit number of gene ace obj to <= 500 per #2788
* corresponding_gene field
change back to Reference allele #3201
reference allele for affected genes on Variationn page #3201
* check Affect.Gene for whether carrying reference allele, and mark it as so
* hide Reference allele for a gene if it's same as the Variation page
style affected gene in Genetic widget of variation page #3201
take care of case when too many genes to display
take care of case when too many genes to display