grunt writes build timestamp, read into about view
cleaned up a debug flag
Merge pull request #8033 from HighwayChile/issue-7716-2

about screen shows build timestamp if running from /dist
Merge branch 'master' of https://github.com/adobe/brackets

# By HighwayChile
# Via HighwayChile (1) and Randy Edmunds (1)
* 'master' of https://github.com/adobe/brackets:
  cleaned up a debug flag
  grunt writes build timestamp, read into about view