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_base/test_base_error.py

@@ -37,7 +37,7 @@ def testBaseError_Dialog(qtbot, monkeypatch, fncDir, tmpDir):
     nwGUI = nw.main(["--testmode", "--config=%s" % fncDir, "--data=%s" % tmpDir])
     qtbot.addWidget(nwGUI)
     nwGUI.show()
-    qtbot.waitForWindowShown(nwGUI)
+    qtbot.wait(20)
 
     nwErr = NWErrorMessage(nwGUI)
     qtbot.addWidget(nwErr)
@@ -82,7 +82,7 @@ def testBaseError_Handler(qtbot, monkeypatch, fncDir, tmpDir):
     nwGUI = nw.main(["--testmode", "--config=%s" % fncDir, "--data=%s" % tmpDir])
     qtbot.addWidget(nwGUI)
     nwGUI.show()
-    qtbot.waitForWindowShown(nwGUI)
+    qtbot.wait(20)
 
     # Normal shutdown
     with monkeypatch.context() as mp: