Bumping version to 31-SNAPSHOT
Bumping version to 31-SNAPSHOT

openshiftio-vertx-boosters/vertx-secured-http-booster,openshiftio-vertx-boosters/vertx-secured-http-booster,openshiftio-vertx-boosters/vertx-secured-http-booster,openshiftio-vertx-boosters/vertx-secured-http-booster