Merge pull request #651 from joshmoore/11955-loci-tools

11955 loci-tools docs
using latest-develop redirects for downloads
Update download link in side menu
merge dev_5_0 -D org -I include -E exclude: PR 640 (Update docs for import and logging fixes)
merge dev_5_0 -D org -I include -E exclude: PR 653 (Update documentation to use Pillow instead of PIL)
merge dev_5_0 -D org -I include -E exclude: PR 656 (using latest-develop redirects for downloads)