[vim] Use iref instead of ref
[env] Geany/gedit fct to jump to a given line
[svn] Modify svn-cat/svn-log/svn-diff, they still need to be cleaned up
(remove the revision stuff for example, as well as the file stuff)
[svn] Fix the way to extract revision numbers for svn-log, svn-cat
svn-diff (maybe we should remove this rarely used stuff)