Upgraded the base launcher to Felix Framewrok 1.4.1 in Rev. 738835
This upgrade requires some changes to internal workings and some changes to properties.
The felix.cache.profiledir property is now replaced by the org.osgi.framework.storage property and the felix.startlevel.framework property is replaced by the org.osgi.framework.startlevel property. If the sling.properties file still contains either of the old properties, the propery is migrated to the new name and written to the sling.properties file again.
In addition, the osgi-core-packages and osgi-compendium-packages properties are modified to accommodate the added (or modified) API. To enable replacing any existing osgi-core-packages and osgi-compendium-packages properties in the sling.properties file, the launcher JAR contains the sling.osgi-core-packages and sling.osgi-compendium-packages properties, which will replace the existing properties of the same name (without the "sling." prefix).