Merge branch '2.7' into 2.8

* 2.7:
  Add PHPDbg support to HTTP components
  bumped Symfony version to 2.7.45
  updated VERSION for 2.7.44
  update CONTRIBUTORS for 2.7.44
  updated CHANGELOG for 2.7.44
  Fix check of color support on Windows

Author: fabpot

Output/StreamOutput.php

@@ -83,17 +83,26 @@ protected function doWrite($message, $newline)
      *
      * Colorization is disabled if not supported by the stream:
      *
-     *  -  Windows != 10.0.10586 without Ansicon, ConEmu or Mintty
+     *  -  the stream is redirected (eg php file.php >log)
+     *  -  Windows without VT100 support, Ansicon, ConEmu, Mintty
      *  -  non tty consoles
      *
      * @return bool true if the stream supports colorization, false otherwise
      */
     protected function hasColorSupport()
     {
+        if (function_exists('stream_isatty') && !@stream_isatty($this->stream)) {
+            return false;
+        }
         if (DIRECTORY_SEPARATOR === '\\') {
+            if (function_exists('sapi_windows_vt100_support')) {
+                $vt100Enabled = @sapi_windows_vt100_support($this->stream);
+            } else {
+                $vt100Enabled = '10.0.10586' === PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD;
+            }
+
             return
-                function_exists('sapi_windows_vt100_support') && @sapi_windows_vt100_support($this->stream)
-                || '10.0.10586' === PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD
+                $vt100Enabled
                 || false !== getenv('ANSICON')
                 || 'ON' === getenv('ConEmuANSI')
                 || 'xterm' === getenv('TERM');