Add gss_krb5_copy_ccache
Expose delegated credentials if GSS_C_DELEG_FLAG is set
Merge branch 'gss_krb5_copy_ccache' of https://github.com/opinsys/gssapi into opinsys-gss_krb5_copy_ccache

Conflicts:
	lib/gssapi/simple.rb
Merge branch 'opinsys-gss_krb5_copy_ccache'