Added smart mapping for tab-completion
Added smart mapping for tab-completion

via http://vim.wikia.com/wiki/Smart_mapping_for_tab_completion

SlyDen/dotfiles,Reesi82/dotfiles,nicknisi/dotfiles,OctavianRotari/dotfiles,bbtb1982/dotfiles,paulhirschi/dotfiles,fieteboerner/dotfiles,zhenglaizhang/dotfiles-1,fieteboerner/dotfiles,damca/dotfiles-ubuntu,Jooho/dotfiles_mac,ptgamr/dotfiles,ptgamr/dotfiles,nicknisi/dotfiles,fieteboerner/dotfiles,NerdPad/dotfiles,abhisood/dotfiles,Boukefalos/dotfiles,nicknisi/dotfiles,jacobxk/dotfiles-1,jacobxk/dotfiles-1,bbtb1982/dotfiles,dyong0/dotfiles,pekosi/dotfiles,pekosi/dotfiles,Jooho/dotfiles_mac,zhenglaizhang/dotfiles-1,jbargu/dotfiles,patnolanireland/dotfiles,gblock0/dotfiles_unstable,damca/dotfiles-ubuntu,jbargu/dotfiles,joeandrews/dotfiles,neutrinog/dotfiles,patnolanireland/dotfiles,OctavianRotari/dotfiles