Revert "Revert "assert the bbs won't start if it cannot connect to the loggretor agent""
Revert "Revert "assert the bbs won't start if it cannot connect to the loggretor agent""

This reverts commit 1cbd0d0f06372f0b5109b38ba862988362abdf0f.

cloudfoundry-incubator/bbs,cloudfoundry-incubator/bbs