Doxygen change "SER" to "Kamailio"

lib/doxygen.cfg

@@ -3,7 +3,7 @@
 #---------------------------------------------------------------------------
 # Project related configuration options
 #---------------------------------------------------------------------------
-PROJECT_NAME           = "SER libraries"
+PROJECT_NAME           = "Kamailio libraries"
 PROJECT_NUMBER         = 1
 OUTPUT_DIRECTORY       = doc/
 CREATE_SUBDIRS         = NO