Feature 681 quicksearch 3.1

[jprestop]

Pull Request Testing

• Describe testing already performed for these changes:
  

Clicked on the links on the page below and saw that the quick search did not work:
https://dtcenter.github.io/METplus/v3.1/Users_Guide/quicksearch.html

Fixed the problem and put it the fixes at a temporary web location. Clicked on the links on the page below and saw that the quick search now works:
https://ral.ucar.edu/staff/jpresto/work/METplus_jpresto/Users_Guide/quicksearch.html

• Recommend testing for the reviewer to perform, including the location of input datasets:
  

Please repeat what I did above to verify.

• Will this PR result in changes to the test suite? [Yes or No]
  
  No

• After merging, should the reviewer DELETE the feature branch from GitHub? [Yes or No]
  
  Yes

Pull Request Checklist

See the METplus Workflow for details.

• Complete the PR definition above.
• Ensure the PR title matches the feature or bugfix branch name. (Sorry I named the branch incorrectly, using feature instead of bugfix!)
• Define the PR metadata, as permissions allow.
  Select: Reviewer(s), Project(s), and Milestone
• After submitting the PR, select Linked Issues with the original issue number.
  (I didn't link the issue because I don't want it to close after this is approved, because I still need to do it for the 3.1 documentation and need to update the release documentation, but that the release documentation will be updated in branch feature_673_release_guide.)

[georgemccabe]

Same changes as the previous PR but using v3.1 instead of develop. Looks good.