Merge pull request #1491 from WormBase/staging

Staging
* WormMine integration
Merge pull request #1509 from WormBase/staging

Staging
Merge pull request #1530 from WormBase/staging

Staging
GBrowse config - indentation
#1501 - broken related papers widget
#628 - polyA sites
#1435 - legacy site moved to footer
#1141 - simplify history table
#1520 - SPELL link added to tools
logging work
Merge pull request #1710 from WormBase/staging

Staging
Pre- WS239 work
Merge branch 'staging' of github.com:WormBase/website into staging
Removed 'matching' #1647