Change the order of appearance of class methods

Constuctors and destructors for each class appear
before the rest of the methods. The rest appear in
alphabetical order as set by SORT_MEMBER_DOCS.

Author: Andreas Paschos

src/doxyfile

@@ -571,7 +571,7 @@ SORT_BRIEF_DOCS        = NO
 # detailed member documentation.
 # The default value is: NO.
 
-SORT_MEMBERS_CTORS_1ST = NO
+SORT_MEMBERS_CTORS_1ST = YES
 
 # If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
 # of group names into alphabetical order. If set to NO the group names will