Should be able to render title attribute

What steps will reproduce the problem?
1. add 'title' attribute to the \pie command
2. compile
3.

What is the expected output? What do you see instead?
A pie chart with title. Compilation error.

What version of the product are you using? On what operating system?

Please provide any additional information below.

Original issue reported on code.google.com by davidshe...@gmail.com on 11 Aug 2014 at 11:49

xuyuan / pgf-pie

Should be able to render title attribute #8