robots.txt and .htaccess syntax highlight

Use Package Control to install the syntax packages you want to use. If you're using Sublime Text without Package Control, you're missing out on a lot.

  1. Install Package Control (follow the linked instructions)
  2. After restarting, type Command+Shift+P then Install Package
  3. Install ApacheConf and the Robot Framework you mentioned

Packages can be added and removed very easily, but greatly enhance and personalize what you can do with Sublime Text.