fix podAnnotations usage in templates

[ploxiln]

now following the pattern already used for ingress and service annotations:

helm-chart/charts/nsq/templates/ingress.yaml

Lines 14 to 17 in 0f6d703

	{{- with .Values.nsqadmin.ingress.annotations }}
	annotations:
	{{- toYaml . | nindent 4 }}
	{{- end }}

helm-chart/charts/nsq/templates/nsqd-service.yaml

Lines 8 to 11 in 0f6d703

	{{- with .Values.nsqd.service.annotations }}
	annotations:
	{{- toYaml . | nindent 4 }}
	{{- end }}

and bump chart version to 0.0.8

fixes #10 with the fix suggested by @alanorther