Merge branch 'release/presto-0.5.3' into develop
Removed debug statement.
Now possible to specify under which key the messages are stored.
Added q.alt to mongo field resolver which allows multiple alternative queries if the first does not expand properly (any of its variables are empty)
[maven-release-plugin] prepare release presto-0.5.4
[maven-release-plugin] prepare for next development iteration
Merge branch 'release/presto-0.5.4'