 5d998b64ff
			
		
	
	5d998b64ff
	
	
	
		
			
			Update time calculations in the periodic task handling to use the timeutils module from oslo. This provides benefits for unit testing, since we can easily override the time functions to simulate time differences without having to actually sleep and make the unit tests run unnecessarily long. Resolves bug 1098979. Change-Id: I1e6a0a0b1622a3f8c37c42376f5261f5f2dbf6fe