Another promising IDE for Julia and a work in progress by Mike Innes and Keno Fisher is Juno, which is based on the Light Table environment. The docs at http://junolab.org/docs/installing.html provides detailed instructions for installing and configuring Juno. Here is a summary of the steps:

Light Table works extensively with a command palette that you can open by typing Ctrl + SPACE, entering a command, and then selecting it. Juno provides an integrated console, and you can evaluate single expressions in the code editor directly by typing Ctrl + Enter at the end of the line. A complete script is evaluated by typing Ctrl + Shift + Enter.