Election for Lazar Bulic as Committer on Eclipse Vert.x

Lazar Bulic has made an impact on the project.

I has addressed the following bugs:

- vert.x-auth:
- https://github.com/eclipse-vertx/vertx-auth/pull/386
- https://github.com/eclipse-vertx/vertx-auth/pull/532
- https://github.com/eclipse-vertx/vertx-auth/pull/715
- vert.x-web:
- https://github.com/vert-x3/vertx-web/pull/2300
- vert.x-sql-client:
- https://github.com/eclipse-vertx/vertx-sql-client/pull/1422

He has also.
- vert.x-auth:
- https://github.com/eclipse-vertx/vertx-auth/pull/603
- https://github.com/eclipse-vertx/vertx-auth/pull/736
- vert.x-web:
- https://github.com/vert-x3/vertx-web/pull/2000
- https://github.com/vert-x3/vertx-web/pull/2041
- https://github.com/vert-x3/vertx-web/pull/2501
- https://github.com/vert-x3/vertx-web/pull/2724
- https://github.com/vert-x3/vertx-web/pull/2732
- vert.x-redis
- Various fixes and improvements on Redis cluster driver

It is my pleasure to nominate Lazar Bulic as a committer on Eclipse Vert.x.