Fixes typo in doxygen-python, and fixes unitest TestCase().discover on python < 2.7

pcbnew/Doxyfile_python

@@ -396,7 +396,7 @@ LOOKUP_CACHE_SIZE      = 0
 # normally produced when WARNINGS is set to YES.
 # The default value is: NO.
 
-EXTRACT_ALL            = NO
+EXTRACT_ALL            = YES
 
 # If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
 # be included in the documentation.
@@ -408,7 +408,7 @@ EXTRACT_PRIVATE        = NO
 # scope will be included in the documentation.
 # The default value is: NO.
 
-EXTRACT_PACKAGE        = NO
+EXTRACT_PACKAGE        = YES
 
 # If the EXTRACT_STATIC tag is set to YES all static members of a file will be
 # included in the documentation.
@@ -430,7 +430,7 @@ EXTRACT_LOCAL_CLASSES  = YES
 # included.
 # The default value is: NO.
 
-EXTRACT_LOCAL_METHODS  = NO
+EXTRACT_LOCAL_METHODS  = YES
 
 # If this flag is set to YES, the members of anonymous namespaces will be
 # extracted and appear in the documentation as a namespace called
@@ -455,7 +455,7 @@ HIDE_UNDOC_MEMBERS     = NO
 # no effect if EXTRACT_ALL is enabled.
 # The default value is: NO.
 
-HIDE_UNDOC_CLASSES     = NO
+HIDE_UNDOC_CLASSES     = YES
 
 # If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
 # (class|struct|union) declarations. If set to NO these declarations will be
@@ -796,7 +796,7 @@ EXCLUDE_PATTERNS       =
 # Note that the wildcards are matched against the file with absolute path, so to
 # exclude all test directories use the pattern */test/*
 
-EXCLUDE_SYMBOLS        =
+EXCLUDE_SYMBOLS        = _object,SwigPyIterator
 
 # The EXAMPLE_PATH tag can be used to specify one or more files or directories
 # that contain example code fragments that are included (see the \include