set bundle.threshold to 4

* this throws no longer the status critical by default
* also updated some component parameters to more usefriendly values, so
  they appear with proper naming in the Felix console
improve messaging in case of missing HealthStatusProviders
mention the License in the readme
Merge branch 'master' into 4-defaultContent
support more mbean datatypes
fix merge conflict

Conflicts:
	core/src/main/java/de/joerghoh/cq5/healthcheck/impl/providers/MBeanStatusProvider.java
Merge branch '4-defaultContent' into 30-non-available-mbeans
make OSGI config more userfriendly
Merge branch '4-defaultContent' into 30-non-available-mbeans
Merge pull request #31 from joerghoh/joerghoh-master

please merge joerghoh-master