* update groups

git-svn-id: svn://svn.code.sf.net/p/filebot/code/trunk@2664 40b5aca5-6b98-4155-8834-ff3a5bb60073
* make sure files are added alphabetically (File.list() does not guarantee sorted return value)

git-svn-id: svn://svn.code.sf.net/p/filebot/code/trunk@2665 40b5aca5-6b98-4155-8834-ff3a5bb60073
* make sure core size is not limited to max thread pool size (seems to be a enforced limit now in JDK 8)

git-svn-id: svn://svn.code.sf.net/p/filebot/code/trunk@2666 40b5aca5-6b98-4155-8834-ff3a5bb60073
* try to better guess a good parallel processing thread count that's reasonable for most systems be it 2 core / 32 core / HDD / SSD / etc

git-svn-id: svn://svn.code.sf.net/p/filebot/code/trunk@2667 40b5aca5-6b98-4155-8834-ff3a5bb60073
* variable threadPoolSize for parallel checksum computations

git-svn-id: svn://svn.code.sf.net/p/filebot/code/trunk@2668 40b5aca5-6b98-4155-8834-ff3a5bb60073