MAGETWO-52914: Setup UI Modifications

- fixed wording

Author: Ivan Gavryshko

setup/view/magento/setup/select-version.phtml

@@ -59,7 +59,7 @@
     <div class="row" ng-show="upgradeProcessed && !upgradeProcessError">
         <div class="col-m-3">
             <label class="form-label" for="showUnstable">
-                Show Unstable
+                Show All Versions
             </label>
         </div>
         <div class="col-m-4">