Fixes bug in socket.io file upload using unix epoch

public/js/vendor/upload/client.min.js

@@ -8,7 +8,7 @@
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-{file:a,bytesLoaded:l,name:k});v+=w;v<a.size?setTimeout(x,d.chunkDelay):(g.emit("siofu_done",{id:c}),r("load",{file:a,reader:b,name:k}))}};e(b,"load",l);e(b,"error",function(){g.emit("siofu_done",{id:c,interrupt:!0});t(b,"load",l)});e(b,"abort",function(){g.emit("siofu_done",{id:c,interrupt:!0});t(b,"load",l)});g.emit("siofu_start",{name:a.name,mtime:a.lastModifiedDate,meta:a.meta,size:a.size,encoding:f?"text":"octet",id:c});u.push(function(a){k=a;x()});return p}},x=function(a){if(0!==a.length){for(var b=
+{file:a,bytesLoaded:l,name:k});v+=w;v<a.size?setTimeout(x,d.chunkDelay):(g.emit("siofu_done",{id:c}),r("load",{file:a,reader:b,name:k}))}};e(b,"load",l);e(b,"error",function(){g.emit("siofu_done",{id:c,interrupt:!0});t(b,"load",l)});e(b,"abort",function(){g.emit("siofu_done",{id:c,interrupt:!0});t(b,"load",l)});g.emit("siofu_start",{name:a.name,mtime:a.lastModified,meta:a.meta,size:a.size,encoding:f?"text":"octet",id:c});u.push(function(a){k=a;x()});return p}},x=function(a){if(0!==a.length){for(var b=
 0;b<a.length;b++)a[b].meta||(a[b].meta={});if(r("choose",{files:a}))for(b=0;b<a.length;b++){var c=A(a[b]);k[c.id]=c}}},l=function(a){var b=a.target.files||a.dataTransfer.files;a.preventDefault();x(b);if(d.resetFileInputs){try{a.target.value=""}catch(e){}if(a.target.value){var b=document.createElement("form"),c=a.target.parentNode,f=a.target.nextSibling;b.appendChild(a.target);b.reset();c.insertBefore(a.target,f)}}};this.submitFiles=function(a){a&&x(a)};this.listenOnSubmit=function(a,b){b.files&&e(a,
 "click",function(){x(b.files)},!1)};this.listenOnArraySubmit=function(a,b){for(var c in b)this.listenOnSubmit(a,b[c])};this.listenOnInput=function(a){a.files&&e(a,"change",l,!1)};this.listenOnDrop=function(a){e(a,"dragover",function(a){a.preventDefault()},!1);e(a,"drop",l)};this.prompt=function(){var a;a=document.getElementById(d.fileInputElementId);a||(a=document.createElement("input"),a.setAttribute("type","file"),a.setAttribute("id",d.fileInputElementId),a.style.display="none",document.body.appendChild(a));
 e(a,"change",l,!1);var b=document.createEvent("MouseEvents");b.initMouseEvent("click",!0,!0,window,0,0,0,0,0,!1,!1,!1,!1,0,null);a.dispatchEvent(b)};this.destroy=function(){z();var a=document.getElementById(d.fileInputElementId);a&&a.parentNode.removeChild(a);for(var b in k)k.hasOwnProperty(b)&&(k[b].abort=!0);k=u=q=f=null};this.addEventListener=function(a,b){f[a]||(f[a]=[]);f[a].push(b)};this.removeEventListener=function(a,b){if(!f[a])return!1;for(var c=0;c<f[a].length;c++)if(f[a][c]===b)return f[a].splice(c,