[IO-554] fixed: prevent input stream close

[mmariotti]

[IO-554] FileUtils.copyToFile(InputStream source, File destination) closes input stream.
Fixed removing 'source' from try-with-resources.

[coveralls]

Coverage decreased (-0.002%) to 90.052% when pulling 7fd4df3 on mmariotti:patch-1 into fdcc71d on apache:master.

[coveralls]

Coverage decreased (-0.002%) to 90.052% when pulling 67ba564 on mmariotti:patch-1 into fdcc71d on apache:master.

[jochenw]

For the sake of binary compatibility, I'd suggest an alternate proposal:

• Change the Javadocs of FileUtils.copyToFile to reflect the current situation.

• Introduce a new method copyToFile(InputStream, File, boolean), which is basically doing the same than the old implementation, except that the last parameter decides upon closing, or not.