Merge pull request #1471 from jbertram/master

HORNETQ-1294 - Simplify the execution of the XML importer/exporter
making tools single jar as part of install
Merge pull request #1472 from clebertsuconic/build-change

making tools single jar as part of install
This is to remove a bunch of unnecessary classes from the hornetq-tools jar file. It saves around 5MB of space.