LDEV-3275: Use Apache Commons IO version 2.1 -> 2.4 delivered with WildFly.Previous similar upgrades were:Apache Commons Collections 3.1 -> 3.2.1Apache Commons BeanUtils 1.6 -> 1.8.3Saaj 1.2 -> 1.3JaxRPC same version, but delivered with WildFly.
LDEV-2829 updating Apache Commons IO lib(This is done because "recent versions of FileUtils (such as the 2.0.1 release) have added the use of NIO for copying files; NIO can significantly increase file-copying performance, in a large part because the NIO routines defer copying directly to the OS/filesystem rather than handle it by reading and writing bytes through the Java layer.")