[Update] (vimrc && vundlerc) config, add plugins

(vundlerc)

add:
* perl-support.vim
* gabrielelana/vim-markdown
* gabrielelana/vim-markdown

delete:
* tpope/vim-markdown
* jtratner/vim-flavored-markdown

(vimrc)
* Disable auto-run ctags-proj.sh (performance)
* change colorscheme to base16-eighties (easy on eyes)
* keep markdown filetype markdown
* Add jslint (style matters)
* vim-jsdoc configuration (<C-l> runs Plugin. Come on dude, really!?)

Have yet to discover Ultisnips + YCM friendly config. Rollback to
something more minimal.