Changes required by Guava deprecation of Stopwatch ctor

- Preparation for jclouds 1.8.0 and Guava 17
This closes #${PR}

* github/pr/79:
  Changes required by Guava deprecation of Stopwatch ctor
Workaround for builds.apache.org CI

The build on builds.apache.org fails due to the wrong nodejs binary being used.
Until nodejs-maven-plugin is fixed force the usage of the 64 bit nodejs binary
on 64 bit systems.