update the Changelog

ChangeLog

@@ -27,6 +27,7 @@ r2253 | fpruvost | 2015-06-19 16:57:27 +0200 (ven. 19 juin 2015)
   - if hints are given by user to find libs (CMake option or env. var) --> do not use pkg-config
 - avoid to call MPI_Finalize if MPI has been initialized by user
 - add MORSE_Pause/Resume function to avoid CPU consumption when no tasks have to be executed
+- update the fortran90 interface
 
 chameleon-0.9.0
 ------------------------------------------------------------------------