TLS parameter are not taken into account during deploy

[lerminou]

TLS parameters are configured but still commented,
graylog is actually slow to start and we need to stop the service / uncomment / start after the role finished to perform this stuff

[lerminou]

Travis error linked to elastic, not to the updates here

[CLAassistant]

All committers have signed the CLA.

[mariussturm]

Hey,
thanks for the contribution. You can also use conditions in template files. There is no need to modify the file after rendering, for an example see:

graylog-ansible-role/templates/graylog.server.conf.j2

Lines 178 to 182 in a22ed97

	{% if graylog_trusted_proxies %}
	trusted_proxies = {{ graylog_trusted_proxies }}
	{% else %}
	#trusted_proxies = 127.0.0.1/32, 0:0:0:0:0:0:0:1/128
	{% endif %}