Implement copyDirs parameter, similar to copyFiles - should recursively copy directory content to destination
fix MartinNowak's finding - wildcard copyDirs should be applied to directories only
Modify copyFiles to allow recursive copying of directories with contents, if directory name is specified in file list (or matched by wildcard)
remove unnecessary check for directories starting with dot
add test for copyFiles
Merge pull request #471 from buggins/master

Implement copyDirs parameter, similar to copyFiles
compare the bin folder with a list of expected files