* net.paissad.waqtsalat.locationsprovider plugin
   - Added city attribute to City class.
   - Regenerated model & providers code classes.
 * Enhanced IPreferenceStore used by creating new one
'WaqtSalatPreferenceStore' which supports Object values (still buggy for
eobjects storage ...)
 * Implemented Lucene cities search
 * Updated main ViewPart.
 * Created Maxmind tool (GeoLiteCityTool) which is intended to create a
new CSV database containing country_name a removing some "duplicates".
 * Update Maxmind Locations Provider so that it becomes based to the
newly generated & modified CSV database instead of the default one.
 * Added new icons.