Bump src/acceptance-tests

Bump :
  Zach Robinson:
     Merge remote-tracking branch 'origin/pr/34'
  Max Brunsfeld:
     Ignore all *config.json files
  Amit Kumar Gupta:
     rename go to golang to fix issue with creating binary called go

Signed-off-by: Graeme Davison <gdavison@pivotallabs.com>