#14 created CustomListCellRenderer and RendererTools
 #14 Created ContactRenderer and added hyperlinks to ContactEditor to open E-Mails and URLs
 #14 modified getTitle() in ContactEditor
 #14 added the contact tab to ResourceRenderer

Inserted an instance of ContactRenderer into ResourceRenderer.
 #14 created class ResourceUtils

added a static method to filter tags with a certain taggroup of a resource bean
 #14 changed the method ResourceRenderer.generateListWithKeywords()

the method uses now the method filterTagsOfResource() such that only
Keywords appear in the list
 #14 created helper classes for the preview map
 #14 created a first version of GeographicInformationPanel
 #14 added the geographic information tab to ResourceRenderer

added an instance of GeographicInformationPanel as tab to the
ResourceRenderer
 #14 fill GeographicInformationPanel with data

added some methods to show the catchments and spatial resolution and
scale in the gui of GeographicInformationPanel
#14 move GeographicInformationPanel to different package
#14 added a title around the contact information
#14 created TimestampToDateConverter
#14 created TemporalInformationPanel
 #14 added the temporal tab to ResourceRenderer

ResourceRenderer has now a tab which contains an instance of
TemporalInformationPanel
#14 created LicenseInformationPanel
 #14 added the license tab to ResourceRenderer

The ResourceRenderer contains now a tab with an instance of
LicenseInformationPanel
 #14 added missing bindingGroup.unbind() in renderers

In the renderer ResourceRenderer and in the editor ContactEditor the
method dispose() did not call bindingGroup.unbind()
 #14 created a first version of MetadataRenderer