rework of the server side

main change: the same server may be used for several instruments

- client classes are 'Interactors' dealing with the parameters etc.
- methods from history are added to the clients
+ improvements on the js client side

client/jsFiles/SEAWebClientGraphics.js

@@ -490,7 +490,7 @@ let graphs = (function (){
                     if(idx != -1){ //if the clicked block is displayed somewhere, we create a selection window
                         createSelection(idx); // We will create a selection at the gindex
                     }
-                }                       
+                }
                 createGraph(gindex, block); // we create at the current shown selector (gindex), the graph corresponding to the one clicked (block)
             })
             selection.appendChild(bel);
@@ -547,7 +547,7 @@ let graphs = (function (){
                 + "&variables=" + varlist
                 + "&interval=" + resolution
                 + "&id=" + clientID).getJSON().then(function(data){
-            //console.log('Graph', block, data)
+            // console.log('Graph', block, data);
             let graph = new Graph(gindex, graph_elm, "Time", block.unit, block.tag, type);
             graph_array[gindex] = graph;
 
@@ -559,7 +559,6 @@ let graphs = (function (){
                 for(let e of data.graph[key]){
                     pdata.push({x: e[0]*1000, y: e[1]});
                 }
-                
                 addDataset(gindex, key, pdata, dict[key])
                 // if(pdata.length > 0){
                 //     addDataset(gindex, key, pdata, dict[key])
@@ -919,7 +918,6 @@ let graphs = (function (){
 
         AJAX("http://" + hostPort + "/getvars").postForm(
                 "time=" + msRightTimestampGetVars/1000
-                + window['clientTags']
                 + "&userconfiguration=" + JSON.stringify(getFormattedUserConfigurationFromLocalStorage())
                 + "&id="+ clientID).then(function(data){
             blocks = data.blocks;
@@ -998,7 +996,6 @@ let graphs = (function (){
         AJAX("http://" + hostPort + "/getvars").postForm(
                 "time=" + msRightTimestamp/1000 + "&userconfiguration="
                 + JSON.stringify(getFormattedUserConfigurationFromLocalStorage())
-                + window['clientTags']
                 + "&id="+ clientID).then(function(data){
             currentMaxTime = msRightTimestamp + 60000;
             currentMinTime = msLeftTimestamp;
@@ -1304,7 +1301,6 @@ let graphs = (function (){
         AJAX("http://" + hostPort + "/getvars").postForm(
                 "time=" + currentMaxTime/1000
                 + "&userconfiguration=" + JSON.stringify(userConfiguration)
-                + window['clientTags']
                 + "&id="+ clientID).then(function(data){
             blocks = data.blocks;
             document.getElementById("device").innerHTML =  data.device