Use Gary Bernhardt tab setting

vimrc

@@ -65,6 +65,18 @@ let g:snippetsEmu_key = "<S-Tab>"
 set wildmode=list:longest,list:full
 set complete=.,w,t
 
+" Indent if we're at the beginning of a line. Else, do completion.
+function! InsertTabWrapper()
+    let col = col('.') - 1
+    if !col || getline('.')[col - 1] !~ '\k'
+        return "\<tab>"
+    else
+        return "\<c-p>"
+    endif
+endfunction
+inoremap <tab> <c-r>=InsertTabWrapper()<cr>
+inoremap <s-tab> <c-n>
+
 " Tags
 let g:Tlist_Ctags_Cmd="ctags --exclude='*.js'"