point log link for running build step to the automatically reloading log page in stead of the 'useless' pretty log page

Dependencies

• [2] SMCOU72F hydra: add some admin for adding/enabling/etc build machines
• [3] KAZWI5G4 * hydra: buildpage, show changes since last build/successful build
• [4] 22JB5HNE make changes section more compact/readable
• [*] IK53RV4V

Change contents

• replacement in src/root/common.tt at line 379
  [2.11572]→[2.11572:11682](∅→∅)
  − <td><a href="[% c.uri_for('/build' step.build.id 'nixlog' step.stepnr) %]">[% step.stepnr %]</a></td>
  [2.11572]

  [2.11682]
  + <td><a href="[% c.uri_for('/build' step.build.id 'nixlog' step.stepnr 'tail-reload') %]">[% step.stepnr %]</a></td>