Fix for duplicate category URL Alias error

https://github.com/opencart/opencart/commit/1f3feed23671cd7aaef818d1d60a3998edc2bfb9
Fix for image resize file time check

https://github.com/opencart/opencart/commit/353231d91b9ccf4fce29c376622b144a612e9ba1?w=1