Vagrant box name (#3260)

or vagrant create by default vagrant_default_xxxxxx

deployment/vagrant/core.rb

@@ -11,6 +11,7 @@ end
 
 def provider_libvirt(config)
   config.vm.provider :libvirt do |virt, override|
+    virt.name = "TechEmpower Framework Benchmarks"
     override.vm.hostname = "TFB-all"
     override.vm.box = "RX14/trusty64"
 
@@ -29,6 +30,7 @@ end
 
 def provider_virtualbox(config)
   config.vm.provider :virtualbox do |vb, override|
+    vb.name = "TechEmpower Framework Benchmarks"
     override.vm.hostname = "TFB-all"
     override.vm.box = "ubuntu/trusty64"