Build #351

Parameters
 ONLY_MANAGE_UPDATE_SITE
When this is true, the job will only build the EMF Releng POM, running its tests to manage the integrity of the update site. It will not build the root EMF POM.
 BUILD_TYPE
Only the nightly and milestone choices will do a build of the EMF root POM. The release choice will mirror a new release from the latest milestone build using the EMF Releng POM and will do so only if PUBLISH_REPOSITORY is also true.
 TARGET_PLATFORM
Choose the named target platform against which to compile and test. This is relevant only for nightly and milestone builds and when not only managing the update site.
 PACK_AND_SIGN
Choose whether or not the bundles will be packed and signed. This is relevant only for nightly and milestone builds and when not only managing the update site.
 PUBLISH_REPOSITORY
Choose whether the build will promote the job's resulting update site to the public update site, or, in the case of a release build, whether the latest milestone build should be promoted to a release on the public update site.