INSTALL file added, pwdocs/INSTALL.obsolete obsoleted, README worth reading, misc. cleaning git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@20 c92efa57-630b-4861-b058-cf58834340f0
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2 c92efa57-630b-4861-b058-cf58834340f0