Replaced Vundle with NeoBundle, since it's no longer maintained and the latest version is broken
Changed mappings for vim-skip, since the defaults clash with substitute.
Needed to modify some other plugins to avoid clashes between the mappings.
Enabled autocompletion via eclim
BUG FIX: Removed Gundo in aa08d85, but forgot to remove the most important line
BUG FIX: Removed Showmarks, because it breaks Smeargle
Improved git-gutter maps
Added smeargle