Setting http retries to a negative value no longer retries forever

[jbaiera]

When we made changes to the underlying mechanisms that support automatically retrying bulk operations, we did not take into account that users may set the system to retry forever. This is currently broken in two places - the HTTP retry handler code only checks that the retries are less than the limit instead of if the limit is below zero, and in the bulk retry loop, were we impose a maximum number of retries to avoid runaway user handlers.