Log Message:
tex-xcolor{,-doc}: update to 2.14

* New features:
  - Load if it exists the code from LaTeX to define \mathcolor.

* Bugfixes (LaTeX Team)
  - Modify \XC at info to avoid spurious error from \colorlet{foo}{}
  - make \normalcolor, \colorbox, \fcolorbox \textcolor, \pagecolor,
    \nopagecolor, \definecolor, \DefineNamedColor protected as in color.sty