add vimrc installer
update the vimrc installer to use the directory of the script
refresh bundles [automated]: https://github.com/scrooloose/syntastic.git @ b340672bd03d877ede83f95ccec6a98bbd536d42
refresh bundles [automated]: https://github.com/ervandew/supertab @ b0ca47f4570385043f270f9278ba6d50d1d2fa00
refresh bundles [automated]: https://github.com/luochen1990/rainbow @ a4c5ad6ca5098e30caddb97305162689ddd4f192
refresh bundles [automated]: https://github.com/chrisbra/Recover.vim.git @ 4935455f0cf4154a5727b781ac28e1cb9e538f81
refresh bundles [automated]: https://github.com/airblade/vim-gitgutter @ 1a68abedf1115482beb02834ebc42bc3f6a07672
refresh bundles [automated]: https://github.com/Shougo/unite.vim @ 704325ae48cf96d6c9588279c733f50f78dec3e4
refresh bundles [automated]: https://github.com/Shougo/neomru.vim @ 7df9999b841228661ff73909c5b9e34952331e22
refresh bundles [automated]: https://github.com/Shougo/vimproc.vim @ 98482672f888aec28ae3764e4432f7127ca8697b
refresh bundles [automated]: https://github.com/terryma/vim-multiple-cursors @ a95edcdffd98c5961f067796fbc2a1a82e0f6a83
refresh bundles [automated]: https://github.com/Shougo/neocomplete.vim @ ac49a0737f3581507f063b83ea4439669539d6d8