Rename dbase_job_quota system attribute to job_quota for consistency.
Anti-spam check on Sequence Export plugin.
PubMLST has been seeing lots of automated attempts to post spam using
the sequence export page.  HTML links have been pasted in to the text
box used to upload lists of STs or isolate ids for export.  While this
didn't result in any spam, it did send the job to the job queue where
the offline job manager then rejected the job due to no valid data.  We
now reject jobs with HTML links in the data prior to sending to the job
queue.
Make anti-spam check case-insensitive.
Add 'last updated' field to allele download tables.
Fix reading in of unicode characters in batch upload.
Make sure temp files are written and read in utf8 encoding.
Set UTF8 encoding on data export.
Isolate info: Display schemes to right of tree even if potentially wide.
Scheme display will move below tree if width < 60% of screen.
Optionally hide tree.
Version 1.9.1.
Merge branch 'develop' into REST