* New custom/packaged dependency plugin -> org.h2 (1.3.171)
 * New custom/packaged dependency plugin -> org.apache.lucene (3.5.0)
 * Refactored all plugins created with EMF (GenModel) : changed EMF model version support from 2.9 to 2.6 in order to ease the support for Eclipse Helios (3.6)
 * Updated all MANIFEST.MF and plugin.xml files (explicitely specifying versions of dependencies, updated dependencies ...)
 * BugFix : at first start, when trying to retrieve the timezone when no city is set, a NPE was thrown.
 * Updated features & update site configurations.