[18.05] Backport #6326

[18.05] Pages - fixes for encoded ids in the database

Restructure to allow individual successful conversions to commit, only rolling back individual fails instead of the entire transaction.  This is going to be necessary for complicated deployments like main, where we have ~95% working fine but the otehr 5% were busted to start with (and won't parse), etc.  Also swap dryrun to difflib display.

to include https://github.com/bxlab/bx-python/pull/35 .

Fix https://github.com/galaxyproject/galaxy/issues/6379 and https://github.com/galaxyproject/galaxy/issues/6598 .

Enforce PAGE_MAXRAW, otherwise we have no way to differentiate between potentially all-integer 16 character identifiers.  I can't think of a better way to do this, unfortunately.

Client build.  Looks like we accidentally committed the map references?  Leaving that in place, but we had agreed to drop them.

Almost there, one more (preexisting) bug to fix.  This adds validation on save and correct processing to the page writer.

Refactoring, drop BS4.  It's faster, for sure, but this leaves us with fewer moving parts and this isn't a script anyone's going to run often.  Hopefully.

Allow pages to read both encoded and unencoded ids out of the database.  Always save unencoded version, with the additional benefit of using a simpler, smaller placeholder.

[18.05] row ids that are all numeric become ints...

Since the "F" prefix is checked with substring, row_id must always be a string

[18.05] Update UCSC genome-test server URLs

[18.05] Fix Location of Plugin Static Content In Documentation for 18.05

Bump version; 'patch' since it should be the exact same, as much as anything over the net ever could be\?

[18.05] Use object store to check for existence of extra_files_path

This should fix https://github.com/galaxyproject/galaxy/issues/6585

[18.05] Client rebuild to include uploadbox value fix in release branch.

[18.05] Fix upload file selector value resetting

Fix

[18.05] Fix workflow run link for extracted workflows