Run mix with elixir-mode-iex

[artisonian]

This will compile and import into IEx if the command is started inside a mix project (see #20)

[artisonian]

I'm not sure if this is the proper way to do it. Any feedback is welcome.

[tonini]

Hi,

iex -S mix runs the mix command while loading iex, and the mix command compiles the application.
I think this isn't needed in any case at all.

But thank you for giving feedback on the iex feature, because the whole integration of iex into emacs isn't considered at all. As example it should also be possible to start iex with custom arguments and options.

I will invest some time into it later on.

Cheers

[artisonian]

This is a bit better, but I'm not sure if it's the right solution yet. Use C-u to get a prompt for additional arguments when running elixir-mode-iex.

[artisonian]

#22 Made a topic branch per contribution instructions.