Put a 5-second CPU time limit on the log processing pipeline.

Dependencies

• [2] 6F4UNDTC * Provide access to the raw, non-pretty-printed logfiles.
• [3] MMDLWWZ2 automatic reload of tail log when build is running
• [4] SAIUFDP3 hydra: make sure viewing logs works when logs are bz2'd
• [5] Y6AHH4TH Remove the logfile and logSize columns from the database
• [6] RBHHV7P7 * Read logs using logContents function in stead of handling it everywhere separately.
• [7] ZH6B56XR Try harder to find build logs
• [8] LBNVQXUB * Build the /build stuff in a separate controller.
• [9] KLSDJV75 Serve raw uncompressed logs directly

Change contents

• replacement in src/lib/Hydra/Controller/Build.pm at line 161
  [2.679]→[2.679:723](∅→∅)
  − $c->stash->{logtext} = `$pipeline`;
  [2.679]

  [2.723]
  + $c->stash->{logtext} = `ulimit -t 5 ; $pipeline`;