Merge Novel Layouts (#837)

* Merge novel layouts and simplify the Tokenizer class
* Fix core tests
* Delete auto-layout code
* Remove no longer needed item layouts
* Remove references to deleted item layouts in test
* Make some minor changes to Tokenizer class and update tests
* Update test reference files
* Update sample project
* Fix a few issues with the Tokenizer
* Centre some text in the sample documents
* Make some minor changes to how new projects are generated
* Add support for New Page and VSpace commands to the Tokenizer
* Remove Title and Page layouts and add codes for page break and vertical space
* Add document layout and fix some issues in index class with new title formats
* Update tests and reference files
* Bump the project file version and fix a minor issue in items class
* Update tests and test coverage
* Clean up some warnings and issues in tests

tests/test_dialogs/test_dlg_itemeditor.py

@@ -64,14 +64,14 @@ def testDlgItemEditor_Dialog(qtbot, monkeypatch, nwGUI, fncProj, refDir, outDir)
 
     qtbot.addWidget(itemEdit)
 
-    assert itemEdit.editName.text()          == "New Scene"
+    assert itemEdit.editName.text() == "New Scene"
     assert itemEdit.editStatus.currentData() == "New"
-    assert itemEdit.editLayout.currentData() == nwItemLayout.SCENE
+    assert itemEdit.editLayout.currentData() == nwItemLayout.DOCUMENT
 
     for c in "Just a Page":
         qtbot.keyClick(itemEdit.editName, c, delay=typeDelay)
     itemEdit.editStatus.setCurrentIndex(1)
-    layoutIdx = itemEdit.editLayout.findData(nwItemLayout.PAGE)
+    layoutIdx = itemEdit.editLayout.findData(nwItemLayout.DOCUMENT)
     itemEdit.editLayout.setCurrentIndex(layoutIdx)
 
     itemEdit.editExport.setChecked(False)
@@ -86,9 +86,9 @@ def testDlgItemEditor_Dialog(qtbot, monkeypatch, nwGUI, fncProj, refDir, outDir)
     itemEdit.show()
 
     qtbot.addWidget(itemEdit)
-    assert itemEdit.editName.text()          == "Just a Page"
+    assert itemEdit.editName.text() == "Just a Page"
     assert itemEdit.editStatus.currentData() == "Note"
-    assert itemEdit.editLayout.currentData() == nwItemLayout.PAGE
+    assert itemEdit.editLayout.currentData() == nwItemLayout.DOCUMENT
     itemEdit._doClose()
 
     # Check that the header is updated