Fix the duration on Build pages

Dependencies

• [2] HPEG2RHV Merge the BuildResultInfo table into the Builds table
• [3] MOX7XJ2E Merge the BuildSchedulingInfo table into the Builds table
• [4] 45ESKY6T * hydra: show finish time on build status overview
• [5] 3SQCOHZN * minor performance tweaks
• [6] ZI535LI6 * hydra: 'new' UI for project/jobset/job/build
• [7] DSM3TTSO Hydra/31: "Duration" field broken in cached builds that are not in DB anymore
• [*] J5UVLXOK * Start of a basic Catalyst web interface.

Change contents

• replacement in src/root/build.tt at line 115
  [3.5076]→[3.5804:5835](∅→∅)
  − [% IF !build.finished %]
  [3.5076]

  [3.5113]
  + [% IF build.finished %]
• replacement in src/root/build.tt at line 122
  [3.5325]→[2.7705:7870](∅→∅)
  − [% INCLUDE renderDuration duration = build.stoptime - build.starttime %] <tt>finished at [% INCLUDE renderDateTime timestamp = build.stoptime %]</tt>
  [3.5325]

  [3.5435]
  + [% INCLUDE renderDuration duration = build.stoptime - build.starttime %] finished at [% INCLUDE renderDateTime timestamp = build.stoptime %]