Add editorconfig file
Add editorconfig file

[Editorconfig](http://editorconfig.org/) helps a bit with spacing like for example removing trailing whitespaces, inserting a newline at the end of the file and so on
Editors which currently support editorconfig can be found [here](http://editorconfig.org/#download)

Icenium/icenium-cli,Icenium/icenium-cli