updated changelog

CHANGES.txt

@@ -26,12 +26,14 @@
 * makefile: use install command and set permissions
 * makefile: fixed install bug when libdir doesn't exist (Wim Muskee)
 * makefile: added BSD build support (Luc Hondareyte)
-* makefile: aded ADDITIONAL_LDFLAGS (Pierre Guillot)
+* makefile: added ADDITIONAL_LDFLAGS (Pierre Guillot)
 
 * C++: transitioned to all-header library and removed "cpplib" make target,
        you may need to add `libpd_wrapper/util` to you include paths,
        this also makes it easier to use libpd & C++ with Visual Studio
 
+* C#: added new object-oriented wrapper for the C core (Thomas Mayer)
+
 * Java: added PortAudio support, build using PORTAUDIO=true makefile option
 * Java: allow custom natives loading by implementing PdBaseLoader class (MGSX)