let txlistener reads on the last compilation per file and not only the last one

src/app/compiler/compiler-artefacts.js

@@ -14,28 +14,52 @@ module.exports = class CompilerArtefacts extends Plugin {
   constructor () {
     super(profile)
     this.compilersArtefacts = {}
+    this.compilersArtefactsPerFile = {}
   }
 
   clear () {
     this.compilersArtefacts = {}
+    this.compilersArtefactsPerFile = {}
   }
 
   onActivation () {
+    const saveCompilationPerFileResult = (file, source, languageVersion, data) => {
+      this.compilersArtefactsPerFile[file] = new CompilerAbstract(languageVersion, data, source)
+    }
+
     this.on('solidity', 'compilationFinished', (file, source, languageVersion, data) => {
       this.compilersArtefacts['__last'] = new CompilerAbstract(languageVersion, data, source)
+      saveCompilationPerFileResult(file, source, languageVersion, data)
     })
 
     this.on('vyper', 'compilationFinished', (file, source, languageVersion, data) => {
       this.compilersArtefacts['__last'] = new CompilerAbstract(languageVersion, data, source)
+      saveCompilationPerFileResult(file, source, languageVersion, data)
     })
 
     this.on('lexon', 'compilationFinished', (file, source, languageVersion, data) => {
       this.compilersArtefacts['__last'] = new CompilerAbstract(languageVersion, data, source)
+      saveCompilationPerFileResult(file, source, languageVersion, data)
     })
 
     this.on('yulp', 'compilationFinished', (file, source, languageVersion, data) => {
       this.compilersArtefacts['__last'] = new CompilerAbstract(languageVersion, data, source)
+      saveCompilationPerFileResult(file, source, languageVersion, data)
+    })
+  }
+
+  getAllContractDatas () {
+    const contractsData = {}
+    Object.keys(this.compilersArtefactsPerFile).map((targetFile) => {
+      const contracts = this.compilersArtefactsPerFile[targetFile].getContracts()
+      Object.keys(contracts).map((file) => { contractsData[file] = contracts[file] })
     })
+    // making sure we shave last compilation result in there
+    if (this.compilersArtefacts['__last']) {
+      const contracts = this.compilersArtefacts['__last'].getContracts()
+      Object.keys(contracts).map((file) => { contractsData[file] = contracts[file] })
+    }
+    return contractsData
   }
 
   addResolvedContract (address, compilerData) {

src/app/udapp/make-udapp.js

@@ -32,7 +32,7 @@ export function makeUdapp (blockchain, compilersArtefacts, logHtmlCallback) {
   const txlistener = blockchain.getTxListener({
     api: {
       contracts: function () {
-        if (compilersArtefacts['__last']) return compilersArtefacts['__last'].getContracts()
+        if (compilersArtefacts['__last']) return compilersArtefacts.getAllContractDatas()
         return null
       },
       resolveReceipt: function (tx, cb) {