title: Dags not being picked up as per its schedule if the schedule interval is less than min_file_process_interval value in Airflow.cfg of v1.10.2
body: <p>In airflow.cfg file, I configured min_file_process_interval value to be 120 seconds. The dag had schedule interval to run after every minute. 
  But it is being scheduled only after every 120 seconds (as per min_file_process_interval value).  Is this expected ? </p>
  
  <p>I changed the min_file_process_interval to 200 seconds, then the dag schedule started being picked up after 200 seconds. 
  Just to clarify,if the case is opposite, i.e. dag schedule interval is 2 minutes and min_file_process_interval is 1 minute, then the dag will run fine as per its schedule.
  Below is my dag:</p>
  
  <pre><code>from airflow import DAG
  from airflow.operators.bash_operator import BashOperator
  from datetime import datetime, timedelta
  
  default_args = {
      'owner': 'airflow',
      'depends_on_past': False,
      'start_date': datetime(2019, 5, 14),
      'retries': 0,
  }
  
  dag = DAG('print', catchup=False, default_args=default_args, schedule_interval='*/1 * * * *')
  
  t1 = BashOperator(
      task_id='print_date',
      bash_command='echo `date` , ',
      dag=dag)
  </code></pre>