Fix given examples

[atais]

Hello,

After installing the module I thought I could use some examples to help me in the beginning. I would be really glad if there were available online, but downloading the project is good enough.

However, I have found most of them do not work as they should. Below I present you a list of my suggestions and/or problems I have faced:

• [ ] examples available online or make examples section in readme and describe how to use them(?)
• [ ] npm install does not install peerDependencies. react and react-dom have to be installed manually
• [ ] barChart: what is "click me" button supposed to do? graph disappears
• [ ] cumulativeLineChart: only "Short" series is visible
• [ ] cumulativeLineChart: Re-scale y-axis does not work
• [ ] lineChart: after clicking "change data", tooltip legend is ghosting with old values
• [ ] multibarChart: grouped or stacked give the same result. add data?
• [ ] pieChart: labels and values are really confusing :smiling_imp:

[atais]

@topicus I might have some spare time and I could adapt some examples to plunker versions. Could you clarify the questions so I would know what to work with?