removing dependencies

[dragonwocky]

At the moment, the enhancer is in Python but sends a system call to the electron asar package in order to extract app files.

a) remove Node.js as a dependency and use the pyasar pip package.
b) remove Python as a dependency and rewrite in Node.js.

I've attempted a), but the pyasar package has not been updated for 4 years and just throws errors when I try to use it.
A rewrite would be necessary for #6 anyway - so, I'm going with b) unless someone has a better solution.

[dragonwocky]

branch js going ahead with b, further discussion in #6