Updated doxygen documentation to version 0.5.10

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@905 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip/docs/doxygen.h b/pjsip/docs/doxygen.h
index 6624839..fe2d80c 100644
--- a/pjsip/docs/doxygen.h
+++ b/pjsip/docs/doxygen.h
@@ -119,7 +119,7 @@
   \n
   @subsection doc_ver Version
 
-  This document corresponds to PJSIP version 0.5.9.5.
+  This document corresponds to PJSIP version 0.5.10.
 
   \n
   @subsection doc_how_to_read How to Read This Document