Installation section added to user guide. I am impressed by the number

of things that should have been updated but weren't (and I didn't even
lok carefully).


git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@5534 c92efa57-630b-4861-b058-cf58834340f0

Doc/release-notes

@@ -1,3 +1,6 @@
+New in version 4.1:
+
+Fixed in version 4.1:
 
   * electron-phonon calculation on a uniform grid of q-points + 
     Delta Vscf and dynamical matrices read from file = bad results: 
@@ -280,36 +283,9 @@ Fixed in version 3.0:
 
   *  kpoints.f : case ibrav=5 bad
 
-Fixed in version 3.1.1:
-
-  *  Methfessel-Paxton broadening was hardcoded in the calculation of
-     the electron-phonon coefficients (ngauss1=1 in PH/elphon.f90).
-     There is no good reason to use this instead of simple gaussian
-     (ngauss1=0), which, moreover, guarantees positive definite results.
-
-Fixed in version 3.1:
-
-  *  various problems in stress calculation, both in PW and in CP
-
-  *  in phonon dispersion calculation, the threshold for diagonalization
-     was not always what was expected to be. Minor numerical differences 
-     could result.
-
-  *  the new algorithm for electron-phonon calculation removes a serious
-     bug in the old algorithm, present in v.2.1 to 3 included: when 
-     electron-phonon coefficients were calculated together with the 
-     dynamical matrix, the symmetrization of coeffcients was incorrect.
-     Results from separate calculations were correct.
-
-Fixed in version 3.0:
-
-  *  latgen.f90 : case ibrav=13 bad
-
-  *  kpoints.f : case ibrav=5 bad
-
 Fixed in version 2.1.5:
 
- *    bad forces and stresses with LDA+U in spin-unpolarised case
+  *   bad forces and stresses with LDA+U in spin-unpolarised case
 
   *   bad printout of Lowdin charges in projwfc