Replace submit button with JSON, XML and CSV as submit button.

[Anupam-dagar]

Fixes #513

Checklist

• [x] I have read the Contribution & Best practices Guide and my PR follows them.
• [x] My branch is up-to-date with the Upstream master branch.
• [x] I have added necessary documentation (if appropriate)

Changes proposed in this pull request:

This PR removes submit button on query server and make json, xml and csv as submit button.

@mariobehling please review.

[codecov[bot]]

Codecov Report

Merging #553 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #553   +/-   ##
=======================================
  Coverage   91.85%   91.85%           
=======================================
  Files          30       30           
  Lines         896      896           
=======================================
  Hits          823      823           
  Misses         73       73

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[Anupam-dagar]

why is codacy test stuck on pending?