Merge pull request #19 from zhuochun/visual-investigate

Add visual mode investigate on selected text

Fix undefined variable error

Fix issue with no executable errors

Still allow working with custom commands without executable

Fix loading issue with invrc by default

Remove 'start' from Windows executable

Merge branch 'dash-plugin'

* dash-plugin:
  Add .bundle to gitignore
  Update documentation, bump version number
  Use new dash plugin system for dash string
  Add dash script with tests for which command
  Add local test running mapping
  Remove old function name
  Remove old plugin runtime
  Tests for escape function
  Add files for travis builds
  Unit tests. IN VIM?! HERESY!
  Function for percent escaping keywords
  Change function to not explicitly declare global

Move documentation header, bump version after PR

Fix windows open command

Only map gK if it isn't already mapped

Add default mapping to gK when there isn't one