remove <c-x> mapping and fix json plugin
remove <c-x> mapping and fix json plugin

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