vim: make <tab> mapping smarter
vim: correct g:UltiSnipsSnippetDirectories
vim: change ultisnips dir and set vim-startify
vim: don't need to set g:UltiSnipsSnippetDirectories
vim: set vimwiki folding
vim: improve tab mapping
vim: change <tab> behavior: don't use <tab> to select next
vim: ultisnips is slow & its snippets don't fit me,

back to neosnippet
vim: two fixes for neocomplete