elasticsearch/logstash — pull request #2175 by talevy (2014-12-04 19:45:16+00:00)
Title: let maven-tools get latest, fixes in 1.0.7 present

The latest release of maven-tools-1.0.7 fixes a regression where some of our java dependent plugins
would fail to build because of our naming convention for the apache license string (silly). Now that the fix for this
regression is present in rubygems. no need to lock the version to 1.0.5