v0.8.6

• Added support for vimfiler explorer mode (fixes #171)
• Added doc/tags to .gitignore (PR #182) (@doronbehar)
• Added warning to readme pertaining to old versions of NERDTree and CtrlP (PR #177, fixes #174) (@Melon-Bread)
• Fixes CtrlP buffer names (PR #185) (@HerringtonDarkholme)
• Fixes character encoding issue in vim doc (PR #178) (@mhartington)
• Fixes extraneous space after glyph in airline (PR #184) (@tbodt)
• Fixes errors when NERDTree not present (PR #187) (@blueyed)
• Updated Contributor Covenant to v1.4
• Updated API examples