GUI and code tweaks and fixes (#852)

* Improve format menu header descriptions
* Ensure that item status is parsed after item class from XML
* Fix column alignment in ToC.txt file
* Rename test variable and fix outdated docstring
* Fix ToC.txt underline
* Rename the Layout label on the item details panel
* Add option to emphasise H1 and H2 labels in the project tree
* Rename the main column of the novel tree to match project tree
* Use the same document icons in the outline as the project tree
* Move project tree settings to Project section of config file

nw/core/item.py

@@ -107,6 +107,7 @@ class NWItem():
         if "order" in xItem.attrib:
             self.setOrder(xItem.attrib["order"])
 
+        tmpStatus = ""
         for xValue in xItem:
             if xValue.tag == "name":
                 self.setName(xValue.text)
@@ -117,7 +118,7 @@ class NWItem():
             elif xValue.tag == "layout":
                 self.setLayout(xValue.text)
             elif xValue.tag == "status":
-                self.setStatus(xValue.text)
+                tmpStatus = xValue.text
             elif xValue.tag == "expanded":
                 self.setExpanded(xValue.text)
             elif xValue.tag == "exported":
@@ -136,6 +137,9 @@ class NWItem():
                 # version of novelWriter that doesn't know the tag.
                 logger.error("Unknown tag '%s'", xValue.tag)
 
+        # Guarantees that <status> is parsed after <class>
+        self.setStatus(tmpStatus)
+
         return True
 
     @staticmethod