Ignore files/folders generated by multiple-cursors, projectile, ensime.
Add command for creating global or local abbrev for misspelled words,
and enable abbrev-mode globally.

Via: http://endlessparentheses.com/ispell-and-abbrev-the-perfect-auto-correct.html
Change default theme to sanityinc-tomorrow-night and add customizations.
Remove eclim configuration.
Customize auto-complete.

- Enable ac-menu-map for menu listing completions.
- Decrease delay for showing menu listing completions.
- Don't ignore case when completing partial strings.