Initial bid can be greater than the budget in db

When we save the initial bid to the st-tracker.admaxBids table there are no checks to make sure the default bid is not greater than the budget.

Steps to reproduce:

1. Deploy an account with one BA/BL and a small budget (like $5.33). Set the default bid in algorithm.properties to something higher like 0.3
2. Check the admaxBids table and observe that the value for 'currentBid' is greater than the (correct) max CPC that is in AdWords. In this example the Max CPC should be 0.09 (the daily budget) but the admaxBids table has it listed as 0.3