JreFix will be functional even without the Jnlp Environment
Guarded execution of loadDialog

This ensures that any exception that will occur during loadDialog, will
be caught and handled.
appassembler configuration template

This allows creating standalone (non JNLP) versions of the
OpenThinclient Manager.
Ignoring IntelliJ project files
Refactoring: Extracted the PackageManagerJob
Created a TitleComponent
Introduction of the PackageManagerTaskSummary

The PackageManagerTaskSummary is a replacement for the old warnings
list. The new concept has two advantages:
* Instances of a PackageManager are not required to collect warnings
* The PackageManagerTaskSummary can be extended to contain additional
  values like messages or statistics.
Enhanced the TitleCompontent to contain a title
DialogDescriptor used to display PackageManagerTaskSummaries
Adapted to the new PackageManager API
Added the TitleComponent to the main window
merged error-reporting-on-repository-update into master
merged branch bugfix/error-reporting-on-repository-update from repository
fernanfs/openthinclient-suite into own master-branch