Merge branch '3.0'

* 3.0:
  Fix computation of PR diffs for component matrix lines
  [console][table] adjust width of colspanned cell.
  [BUG] Delete class 'control-group' in bootstrap 3
  [2.8] [Form] Modified iterator_to_array's 2nd parameter to false in ViolationMapper
  added missing constant in Response
  Update HTTP statuses list
  [Console][#18619] Prevent fatal error when calling Command#getHelper() without helperSet
  added StaticVerionStrategyTest
  Add SplFileInfo array doc on Finder iterator methods so that IDE will know what it returns
  [2.3] [Form] Modified iterator_to_array's 2nd parameter to false in ViolationMapper
  Updated the link to the list of currency codes
  Fixed DateTimeInterface comparaison
  [console][table] adjust width of colspanned cell.

Author: fabpot

DataCollector/Util/ValueExporter.php

@@ -28,7 +28,7 @@ class ValueExporter
     public function exportValue($value, $depth = 1, $deep = false)
     {
         if (is_object($value)) {
-            if ($value instanceof \DateTime || $value instanceof \DateTimeInterface) {
+            if ($value instanceof \DateTimeInterface) {
                 return sprintf('Object(%s) - %s', get_class($value), $value->format(\DateTime::ISO8601));
             }