Log warning when we start a call

[kmenzli]

In preprod env when i tried to launch a call with skype provider I get the following stacktrace on the server console.
The call itselft works for me but it would be better to clean up the log also

2017-11-15 09:25:00,878 | WARN | GROUP/webConferencingGRP.js:7040: WARNING - Parse error. Non-JSDoc comment has annotations. Did you mean to start it with '/**'?
[o.g.p.c.resource.ResourceRequestHandler<http-nio-127.0.0.1-10180-exec-7>]

[pnedonosko]

This issue should be resolved in addon 1.0.0-RC01.