Rename files in Docs, and add new Doc about print statements.

Source/Integration/ConsoleOutput.h

@@ -4,21 +4,34 @@
 
 #include "ConsoleOutput.generated.h"
 
-
 //////////////////////////////////////////////////////////////
 //
 // ConsoleOutput
 //
-// This class stores the text that's in the unreal console.
-// It stores it as one great big string, which contains
-// newlines to denote line breaks.
+// When the lua code executes a print statement, the text
+// eventually gets passed to the GameMode blueprint: see
+// Docs/Print-Statement-Handling.md for more information.
+//
+// The GameMode blueprint is expected to create a virtual
+// console of some sort to display the print statements.
+// This class, ConsoleOutput, is a class that the GameMode
+// can optionally use to help implement that virtual console.
+//
+// This class just collects the print statements and keeps
+// a record of what text is in the virtual console.  The
+// text is stored as one big string.
 //
 // This class also contains a 'dirty' bit.  Each time somebody
 // appends a line of text to the console, the dirty bit is
 // automatically set.  The bit can be checked using 'IsDirty'
-// and cleared using 'ClearDirty'.  This makes it so that
-// you don't have to update the unreal widget unless the
-// text has actually changed.
+// and cleared using 'ClearDirty'.  Assuming that the GameMode
+// is maintaining a text widget of some sort, the GameMode
+// can transfer the contents of this buffer into the text
+// widget only when the dirty bit is set.
+//
+// Note that the GameMode is not obligated to use this class.
+// If the GameMode wants to use some other framework to
+// implement the virtual console, that's perfectly fine.
 //
 //////////////////////////////////////////////////////////////