gnu: texlive-fonts-ec -> texlive-ec.

* gnu/packages/tex.scm (texlive-ec): New variable.
(texlive-fonts-ec): Deprecate variable.
(lyx):
(biber):
* gnu/packages/python-xyz.scm (python-pypandoc):
* gnu/packages/statistics.scm (r-with-tests):
* doc/build.scm (pdf-manual):
* gnu/packages/bioinformatics.scm (discrover):
(phyml):
(velvet):
* gnu/packages/chemistry.scm (yaehmop):
* gnu/packages/chez.scm (stex-bootstrap):
* gnu/packages/ocaml.scm (unison):
(ocaml-bibtex2html):
* gnu/packages/plotutils.scm (asymptote): Use new name.

gnu/packages/chez.scm

@@ -760,11 +760,11 @@ Chez Scheme.")))
        (propagated-inputs
         (list xorg-rgb
               (texlive-updmap.cfg
-               (list texlive-l3backend
-                     texlive-hyperref
-                     texlive-bibtex
+               (list texlive-bibtex
+                     texlive-ec
                      texlive-epsf
-                     texlive-fonts-ec
+                     texlive-hyperref
+                     texlive-l3backend
                      texlive-oberdiek))
               ghostscript
               netpbm))