Since I mentioned that IJulia didn't work for me a month ago, I thought I should actually try it again rather than just put other people off. I have just installed it, and although I haven't tested it much, it seems to work fine. It was quite easy to install too.
I have now also installed Sublime IJulia, but I think I am running into this issue: https://github.com/karbarcca/Sublime-IJulia/issues/28
