Changes:
- Images libraries reconfigured (the old configuration could cause some problems with some images).
Warning for a user of a 32-bit system: the count of threads for multi-threaded batch processing is limited to 2 threads due to memory constraints. And that is intended only for systems with 2GB RAM. If you have only 1GB RAM and lower, don't use this feature and set the count of threads to 1. Otherwise you are risking to get "out of memory" error.