Bug 1952 - Uptime of running service instances not displayed correctly

	*Modified the uptime of running instances to show time value
	upto one decimal point.
	*Corrected the api for VNF instances to show its proper count.
	*Changed label of X axis from instances to NS instances in
	graph.

Change-Id: Iaf339aaee175c39d528de5e0cf506e00316258ba
Signed-off-by: harshini.r <harshini.r@tataelxsi.co.in>