[beamer-class] Beamer enumerate ball fg color bugfix

[郑海永]

Hi,

I found the problem that I cannot change the fg color for all enumerate
ball style, at last, I found that this bug can be fixed as follows:


/usr/local/texlive/2014/texmf-dist/tex/latex/beamer

$ diff beamerbaseauxtemplates.sty beamerbaseauxtemplates.sty.default

367c367

< \pgftext{\usebeamerfont*{item projected}*\**color{fg**}*\
insertenumlabel}}

---

\pgftext{\usebeamerfont*{item projected}\insertenumlabel}}

378c378

< *\color{fg**}*\insertsubenumlabel}

---

\insertsubenumlabel}

389c389

< *\color{fg**}*\insertsubsubenumlabel}

---

\insertsubsubenumlabel}

400c400

< \pgftext{*\**color{fg**}*\insertenumlabel}}

---

\pgftext{\insertenumlabel}}