links to pfam and interpro from motif_details widget of protein page #156
try add Prosite to external_url #156
fallback to external url base in case something weird #156
simplify linking to external from motif details, avoid using _build_xrefs, which complicate things a lot #156
whitespace change #156
display database name instead object id #156
tests for protein motif details #156
remove lines that are commented out
Merge remote-tracking branch 'origin/staging' into pfamxref
Merge pull request #2891 from WormBase/pfamxref

linking to pfam from motif details table #156