cf-agent --bootstrap fails on Debian systems, because sys.workdir/inputs is a symlink to /etc/cfengine3. The bootstrap creates 'failsafe.cf' in /etc/cfengine3, but cf-agent complains that this sys.workdir/inputs is a symlink. Both must fail/complain or we accept symbolic link to a
directory.

This patch enable the last option. It will determine if the destination is a symlink to a directory and ```copy_from``` attribute ```type_check : false``` is set.  If both options are true the copy will be honoured.
Merge pull request #1050 from basvandervlies/cp_2_symlink_directory

cf-agent --bootstrap fails on Debian systems.