[maven-release-plugin] copy for tag jmxtrans-parent-252

[maven-release-plugin] copy for tag jmxtrans-parent-251

[maven-release-plugin] copy for tag jmxtrans-250

[maven-release-plugin] copy for tag jmxtrans-249

[maven-release-plugin] copy for tag jmxtrans-248

[maven-release-plugin] copy for tag jmxtrans-247

Merge pull request jmxtrans#153 from natecarlson/master

Get the directory watcher working again

Merge pull request jmxtrans#149 from jhmartin/SensuWriter

Add a SensuWriter, based on LibratoWriter

fix build for log4jwriter

Merge pull request jmxtrans#141 from farnulfo/add-librato-writer

Add librato writer