Fix bug #67151: strtr with empty array crashes
Merge branch 'PHP-5.4' into PHP-5.5
Merge branch 'PHP-5.5' into PHP-5.6
Merge branch 'PHP-5.6'
adding a reproduce script for bug #49184
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  adding a reproduce script for bug #49184
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  adding a reproduce script for bug #49184
Merge branch 'PHP-5.6'

* PHP-5.6:
  adding a reproduce script for bug #49184
Add test for bug #67151
Merge branch 'PHP-5.4' into PHP-5.5
Merge branch 'PHP-5.5' into PHP-5.6
Merge branch 'PHP-5.6'
update the credits
Merge branch 'PHP-5.6'

* PHP-5.6:
  update the credits