Update CHANGELOG with changes concerning fw4spl_0.9.0.3 tag

--HG--
branch : fw4spl_0.9.0

CHANGELOG.txt

+=== fw4spl_0.9.0.3 ( diff from fw4spl_0.9.0.2 ) 11/12/2012 ===
+
+ * General :
+  * Change default transfert function for Muscles and Skin
+  * Add a new action AnonymisePatient to anonymise selected patient in PDB
+  * Add new organ to dictionary Lymph Node
+  * Fix OrganDictionary (re add World key). Add also few liver segment keys
+  * Fix JpgImageWriter to save jpg instead of png file
+  * Fix crash when using manage organ editor
+
 === fw4spl_0.9.0.2 ( diff from fw4spl_0.9.0.1 ) 02/11/2012 ===
 
  * General