Switch vim colorscheme to gruvbox (#23)

.config/nvim/colors/mellow.vim

@@ -0,0 +1,41 @@
+" Vim color file
+" Maintainer: iyerns <iyerns AT gmail DOT com>
+" Last Change: 29 August 2005
+" Version:1.1
+" Comment: A soft mellow colorful scheme for gui
+
+set background=light
+hi clear
+if exists("syntax_on")
+	syntax reset
+endif
+let g:colors_name="mellow"
+
+hi Normal   guifg=black	guibg=#FFFFCC 
+hi Title    guifg=black	guibg=white gui=BOLD
+hi lCursor  guibg=Cyan guifg=NONE
+hi Cursor   guibg=#ff0000 guifg=#ffffff
+
+hi LineNr   guifg=white guibg=#666600
+
+" syntax highlighting groups
+hi Comment  guifg=#996600 gui=NONE
+hi Operator term=None cterm=None gui=None
+
+hi Identifier	 guifg=#663333 gui=NONE
+
+hi Statement	 guifg=#cc0000 gui=NONE
+hi TypeDef guifg=#c000c8 gui=NONE
+hi Type guifg=#0000c8 gui=NONE
+hi Boolean guifg=#0000aa gui=NONE
+
+hi String guifg=#006666 gui=NONE
+hi Number guifg=#808880 gui=NONE
+hi Constant guifg=#888080 gui=NONE
+
+hi Function guifg=#660000  guibg=#ffffcc
+hi PreProc guifg=#808040 gui=NONE
+hi Keyword guifg=#008088 gui=NONE
+
+hi Search guibg=#336600 guifg=#FFFF00 gui=NONE
+hi IncSearch guibg=#CC6600  gui=NONE