Add "munstrap4" template.

This template is based on the original munstrap template, updated
to use bootstrap4 and fixing some of the navigation issues the
author had with the original project.

Key Features:
 * Most pages use lazy-loaded images to cut down network usage.
 * Graph Catergory per node is directly linkable
 * Modal based graph zoom (requires working munin-graph-cgi
 * JavaScript implemented search feature to quickly jump to the desired display.

templates/munstrap4/static/js/formatdate.min.js

@@ -0,0 +1 @@
+Date.prototype.formatDate=function(input,time){var daysLong=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];var daysShort=["Sun","Mon","Tue","Wed","Thu","Fri","Sat"];var monthsShort=["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];var monthsLong=["January","February","March","April","May","June","July","August","September","October","November","December"];var switches={a:function(){return date.getHours()>11?"pm":"am"},A:function(){return this.a().toUpperCase()},B:function(){var off=(date.getTimezoneOffset()+60)*60;var theSeconds=date.getHours()*3600+date.getMinutes()*60+date.getSeconds()+off;var beat=Math.floor(theSeconds/86.4);if(beat>1e3)beat-=1e3;if(beat<0)beat+=1e3;if(String(beat).length==1)beat="00"+beat;if(String(beat).length==2)beat="0"+beat;return beat},c:function(){return this.Y()+"-"+this.m()+"-"+this.d()+"T"+this.H()+":"+this.i()+":"+this.s()+this.P()},d:function(){var j=String(this.j());return j.length==1?"0"+j:j},D:function(){return daysShort[date.getDay()]},F:function(){return monthsLong[date.getMonth()]},g:function(){if(date.getHours()==0){return 12}else{return date.getHours()>12?date.getHours()-12:date.getHours()}},G:function(){return date.getHours()},h:function(){var g=String(this.g());return g.length==1?"0"+g:g},H:function(){var G=String(this.G());return G.length==1?"0"+G:G},i:function(){var min=String(date.getMinutes());return min.length==1?"0"+min:min},I:function(){var noDST=new Date("January 1 "+this.Y()+" 00:00:00");return noDST.getTimezoneOffset()==date.getTimezoneOffset()?0:1},j:function(){return date.getDate()},l:function(){return daysLong[date.getDay()]},L:function(){var Y=this.Y();if(Y%4==0&&Y%100!=0||Y%4==0&&Y%100==0&&Y%400==0){return 1}else{return 0}},m:function(){var n=String(this.n());return n.length==1?"0"+n:n},M:function(){return monthsShort[date.getMonth()]},n:function(){return date.getMonth()+1},N:function(){var w=this.w();return w==0?7:w},O:function(){var os=Math.abs(date.getTimezoneOffset());var h=String(Math.floor(os/60));var m=String(os%60);h.length==1?h="0"+h:1;m.length==1?m="0"+m:1;return date.getTimezoneOffset()<0?"+"+h+m:"-"+h+m},P:function(){var O=this.O();return O.substr(0,3)+":"+O.substr(3,2)},r:function(){var r;r=this.D()+", "+this.d()+" "+this.M()+" "+this.Y()+" "+this.H()+":"+this.i()+":"+this.s()+" "+this.O();return r},s:function(){var sec=String(date.getSeconds());return sec.length==1?"0"+sec:sec},S:function(){switch(date.getDate()){case 1:return"st";case 2:return"nd";case 3:return"rd";case 21:return"st";case 22:return"nd";case 23:return"rd";case 31:return"st";default:return"th"}},t:function(){var daysinmonths=[null,31,28,31,30,31,30,31,31,30,31,30,31];if(this.L()==1&&this.n()==2)return 29;return daysinmonths[this.n()]},U:function(){return Math.round(date.getTime()/1e3)},w:function(){return date.getDay()},W:function(){var DoW=this.N();var DoY=this.z();var daysToNY=364+this.L()-DoY;if(daysToNY<=2&&DoW<=3-daysToNY){return 1}if(DoY<=2&&DoW>=5){return new Date(this.Y()-1,11,31).formatDate("W")}var nyDoW=new Date(this.Y(),0,1).getDay();nyDoW=nyDoW!=0?nyDoW-1:6;if(nyDoW<=3){return 1+Math.floor((DoY+nyDoW)/7)}else{return 1+Math.floor((DoY-(7-nyDoW))/7)}},y:function(){var y=String(this.Y());return y.substring(y.length-2,y.length)},Y:function(){if(date.getFullYear){var newDate=new Date("January 1 2001 00:00:00 +0000");var x=newDate.getFullYear();if(x==2001){return date.getFullYear()}}var x=date.getYear();var y=x%100;y+=y<38?2e3:1900;return y},z:function(){var s="January 1 "+this.Y()+" 00:00:00 GMT"+this.O();var t=new Date(s);var diff=date.getTime()-t.getTime();return Math.floor(diff/1e3/60/60/24)},Z:function(){return date.getTimezoneOffset()*-60}};function getSwitch(str){if(switches[str]!=undefined){return switches[str]()}else{return str}}var date;if(time){var date=new Date(time)}else{var date=this}var formatString=input.split("");var i=0;while(i<formatString.length){if(formatString[i]=="%"){formatString.splice(i,1)}else{formatString[i]=getSwitch(formatString[i])}i++}return formatString.join("")};Date.DATE_ATOM="Y-m-d%TH:i:sP";Date.DATE_ISO8601="Y-m-d%TH:i:sO";Date.DATE_RFC2822="D, d M Y H:i:s O";Date.DATE_W3C="Y-m-d%TH:i:sP";