Document VimuxRunnerType option
Change pane(s) -> view(s) for clarity

Slightly pedantic but it reduces possible confusion.
Should return view name if one is active
Match VimuxUseNearest documentation option w/ code
Merge pull request #105 from alexozer/master

Add VimuxTogglePane
Merge pull request #96 from jdavis/patch-1

Add documentation for VimuxRunnerType config variable