extended grammar to allow style definition of the form ./style n args…

[noltem]

This fixes handling of style definitions of the form -/style n args = {}

I stumbled upon this quite a few times now and decided to produce a quick fix.

[photon-schiesser]

Hi there @noltem ,

Are you currently maintaining TikZEdt at all? I opened a recent issue but I soon realized no one is maintaining TikZEdt, which is a shame, because it excellent (except for issue #42 and #80 )

Do you know what build tools I will need for this project?