Workspace Nav

Give the workspace sidebar the ability to be interacted with via the keyboard. Means that the workspace now is either focused or unfocused.

Included key mappings for navigation, they're pretty much what you'd expect. As well as keymappings that mirror those of NERDTree for VIM.

NERDTree for Vim was an inspiration for this plugin.

Changes

0.8:

• Fix visual selection

0.7:

• Switch to MIT license in order to match Light Table
• Transfer plugin from Beau Fabry to Scott Bauer

0.6:

• Select first child when opening a folder (eush77)

0.5:

• Make entire LI stylable to behave nicely with other themes (Gozala)