[128701] implement property sheet support
diff --git a/bundles/org.eclipse.wst.dtd.ui/src-properties/org/eclipse/wst/dtd/ui/internal/DTDPropertiesMessages.properties b/bundles/org.eclipse.wst.dtd.ui/src-properties/org/eclipse/wst/dtd/ui/internal/DTDPropertiesMessages.properties
new file mode 100644
index 0000000..5f8cd7e
--- /dev/null
+++ b/bundles/org.eclipse.wst.dtd.ui/src-properties/org/eclipse/wst/dtd/ui/internal/DTDPropertiesMessages.properties
@@ -0,0 +1,64 @@
+! Properties file for component: XML tools DTD Editor
+! Packaged for translation in:  xml.zip
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.OccurrenceSection.java
+_UI_ONCE             = Just once (1)
+_UI_ONE_OR_MORE      = One or more (+)
+_UI_OPTIONAL         = Optional (?)
+_UI_ZERO_OR_MORE     = Zero or more (*)
+_UI_LABEL_OCCURRENCE = Occurrence
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.AttributeDefaultSection.java
+_UI_DEFAULT             = Default
+_UI_LABEL_USAGE         = Usage
+_UI_LABEL_DEFAULT_VALUE = Default Value
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.ContentModelGroupSection.java
+_UI_SEQUENCE          = Sequence (,)
+_UI_CHOICE            = Choice (|)
+_UI_LABEL_MODEL_GROUP = Model Group
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.ContentModelNameSection.java
+_UI_LABEL_CONTENT_MODEL = Content Model
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.ContentModelTypeSection.java
+_UI_LABEL_CONTENT_TYPE = Content Type
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.NameSection.java
+_UI_LABEL_NAME = Name
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.TypeSection.java
+_UI_LABEL_TYPE = Type
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.EntityTypeSection.java
+_UI_LABEL_ENTITY_TYPE      = Entity Type
+_UI_LABEL_EXTERNAL_ENTITY  = External
+_UI_LABEL_PARAMETER_ENTITY = Parameter
+_UI_LABEL_GENERAL_ENTITY   = General
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.EntityValueSection.java
+_UI_LABEL_ENTITY_VALUE = Entity Value
+_UI_LABEL_PUBLIC_ID    = Public ID
+_UI_LABEL_SYSTEM_ID    = System ID
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.DTDSectionLabelProvider
+_UI_PROPERTIES_VIEW_TITLE_ELEMENT     = element
+_UI_PROPERTIES_VIEW_TITLE_ELEMENT_REF = element reference
+_UI_PROPERTIES_VIEW_TITLE_CHOICE      = choice
+_UI_PROPERTIES_VIEW_TITLE_SEQUENCE    = sequence
+_UI_PROPERTIES_VIEW_TITLE_ATTRIBUTE   = attribute
+_UI_PROPERTIES_VIEW_TITLE_ATTLIST     = attribute list
+_UI_PROPERTIES_VIEW_TITLE_COMMENT     = comment
+_UI_PROPERTIES_VIEW_TITLE_ENTITY      = entity
+_UI_PROPERTIES_VIEW_TITLE_NOTATION    = notation
+
+! org.eclipse.wst.dtd.ui.internal.properties.section.NewEntitySection
+_UI_FILEDIALOG_SELECT_DTD = Select DTD file
+_UI_FILEDIALOG_SELECT_DTD_DESC   = Select a DTD file from the Workbench projects
+
+! New property tabs
+_UI_LABEL_GENERAL       = General
+_UI_LABEL_OTHER         = Other
+_UI_LABEL_ATTRIBUTES    = Attributes
+_UI_LABEL_DOCUMENTATION = Documentation
+! end
\ No newline at end of file