Add links to de-identified results

Adds link on sample_overview.psp and a placeholder when the sample
has not yet been processed.
Merge pull request #535 from adamrp/deidentified_results

Add links to de-identified results
Update ag_edit_barcode with new sampling sites

the available sampling sites on this page are now the same as those available
to participants, as of the time of this commit.
Merge pull request #538 from adamrp/wwwadmin_sampling_sites

Update ag_edit_barcode with new sampling sites
Update portal to alert users if results are done

Check if the user has any results available on the filesystem. If so, select
the results tab
Update results tab

If the user has results available, indicate this, and provide links to the
sample overview pages for those samples.
Use splitext instead of replace
Add text about what samples might be available

Also fixes some formatting issues
Add participant names to links on results_portal
Merge pull request #539 from adamrp/results_update

Results update