refactor: adhere to coding standard, trim spaces and add new lines to files

[hanoii]

Trim trialing spaces to all files and add a new line.

I'd recommend you configure your editor to do this automatically, all have.

FIxes #80

[hanoii]

@janreges I noticed something else: #83

I don't mind fixing this is well but for now I am tracking this on a separate issue and it can be a different PR as it will be a huge one, all lines will be changed on all files.