Change case of HISTORY.md.

Doxyfile

@@ -758,7 +758,7 @@ WARN_LOGFILE           =
 # spaces.
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = zaaReloaded2 Tests history.md
+INPUT                  = zaaReloaded2 Tests HISTORY.md
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses