fixed a issue with 'fee too low' for certs
fixed a issue with 'fee too low' for certs

coinkeeper/2015-06-22_18-48_syscoin,hgt5/syscoin-review,coinkeeper/2015-06-22_18-48_syscoin,coinkeeper/2015-06-22_18-48_syscoin,hgt5/syscoin-review,hgt5/syscoin-review,hgt5/syscoin-review,coinkeeper/2015-06-22_18-48_syscoin,coinkeeper/2015-06-22_18-48_syscoin,hgt5/syscoin-review,hgt5/syscoin-review,hgt5/syscoin-review,coinkeeper/2015-06-22_18-48_syscoin