[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