Add FileUtils copy_file method.
fix behavior of File.readlines which was removing the trailing \n whereas official ruby code keeps them
add FileUtils.compare_file and its aliases cmp and identical?
File.executable? returns false for files that do not exist (was raising error)
set mtime with :mtime => val on FileUtils.touch.  Closes #188
raise Errno::EISDIR when calling File.read on a directory.  Closes #194
no one uses the list anymore
bump version
update gemspec