acu169443 don't raise Internal Server Error on http connection failures
acu169443 Request timeouts don't need to generate backtraces
acu169443 - Revert "acu169443 don't raise Internal Server Error on http connection failures"

This reverts commit c2613cb23ec438a4afb7f814f0b3822ea9345025.
Merge pull request #125 from rightscale/ivory_14_13_acu169443_fix_backtrace_on_auth_renew

Fix back trace if rightlink can't be authorized due connection problem