Modify Doxyfile to automatically fail invalid documentation builds

Author: saxbophone

Doxyfile

@@ -416,7 +416,7 @@ LOOKUP_CACHE_SIZE      = 0
 # normally produced when WARNINGS is set to YES.
 # The default value is: NO.
 
-EXTRACT_ALL            = YES
+EXTRACT_ALL            = NO
 
 # If the EXTRACT_PRIVATE tag is set to YES, all private members of a class will
 # be included in the documentation.
@@ -442,7 +442,7 @@ EXTRACT_STATIC         = NO
 # for Java sources.
 # The default value is: YES.
 
-EXTRACT_LOCAL_CLASSES  = YES
+EXTRACT_LOCAL_CLASSES  = NO
 
 # This flag is only useful for Objective-C code. If set to YES, local methods,
 # which are defined in the implementation section but not in the interface are
@@ -743,7 +743,7 @@ WARN_NO_PARAMDOC       = YES
 # a warning is encountered.
 # The default value is: NO.
 
-WARN_AS_ERROR          = NO
+WARN_AS_ERROR          = YES
 
 # The WARN_FORMAT tag determines the format of the warning messages that doxygen
 # can produce. The string should contain the $file, $line, and $text tags, which