Improve node insertion, support custom link handlers
Improve node insertion, support custom link handlers

sourcelair/xterm.js,xtermjs/xterm.js,Tyriar/xterm.js,sourcelair/xterm.js,akalipetis/xterm.js,Tyriar/xterm.js,Tyriar/xterm.js,akalipetis/xterm.js,cjordog/NRLWebsite,akalipetis/xterm.js,xtermjs/xterm.js,Tyriar/xterm.js,xtermjs/xterm.js,xtermjs/xterm.js,Tyriar/xterm.js,cjordog/NRLWebsite,cjordog/NRLWebsite,sourcelair/xterm.js,cjordog/NRLWebsite,sourcelair/xterm.js,xtermjs/xterm.js,akalipetis/xterm.js