bug in windows

[FLYyyyy2016]

error like this:

test function run in windows not all pass.

=== RUN   TestSchedule
--- PASS: TestSchedule (0.00s)
=== RUN   TestSchedule_Delay
--- PASS: TestSchedule_Delay (3.02s)
=== RUN   TestSchedule_Every
--- PASS: TestSchedule_Every (4.55s)
=== RUN   TestDelayJob_CancelDoing
--- PASS: TestDelayJob_CancelDoing (0.12s)
=== RUN   TestEveryJob_CancelDoing
--- PASS: TestEveryJob_CancelDoing (0.10s)
=== RUN   TestDelayJob_Cancel
--- PASS: TestDelayJob_Cancel (3.00s)
=== RUN   TestEveryJob_Cancel
schedule_test.go:150 240 does not equal 150
--- FAIL: TestEveryJob_Cancel (2.52s)
=== RUN   TestJob_GetJobStats
schedule_test.go:188 20 does not equal 397
--- FAIL: TestJob_GetJobStats (1.07s)
=== RUN   TestJobReDo
--- PASS: TestJobReDo (1.00s)
FAIL

Process finished with exit code 1

[FLYyyyy2016]

it is because the nextId generate by the time , if time is nearly ,the id is same ;
bug fix by the commit commit