SWARM-1839: Jaeger/ OpenTracing remote reporting not working (#848)
SWARM-1839: Jaeger/ OpenTracing remote reporting not working (#848)

Motivation
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To be able to send OpenTracing data to a remote Jeager backend the current dependency towards jaeger-core 0.25.0 need to be updated due to a bug in that particular version (see https://github.com/jaegertracing/jaeger-client-java/commit/ee137d6bcffafafa480c9cc9d504f0359eca8e4a#diff-0162f3d9453acd66f719f9003a23d3dc).

Modifications
-------------
The dependency to jaeger-core has been updated from version 0.25.0 to 0.26.0

Result
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After updating the jaeger-core dependency the traces are now correctly sent to a remote Jeager backend.
juangon/wildfly-swarm,wildfly-swarm/wildfly-swarm-core,wildfly-swarm/wildfly-swarm-core,wildfly-swarm/wildfly-swarm,wildfly-swarm/wildfly-swarm,kenfinnigan/wildfly-swarm,juangon/wildfly-swarm,wildfly-swarm/wildfly-swarm-core,juangon/wildfly-swarm,wildfly-swarm/wildfly-swarm,wildfly-swarm/wildfly-swarm-core,kenfinnigan/wildfly-swarm,wildfly-swarm/wildfly-swarm-core,juangon/wildfly-swarm,kenfinnigan/wildfly-swarm,kenfinnigan/wildfly-swarm,kenfinnigan/wildfly-swarm,juangon/wildfly-swarm,wildfly-swarm/wildfly-swarm,wildfly-swarm/wildfly-swarm