Update dlctemplate.py: removed outdated nn_blr=opt.nn_blr, nn_twt=opt.nn_twt. The template was not working!

add optional host parameter in parse_qstat_n1

When called on local machine with output from qstat on cluster, the socket.gethostname returns the name of the local machine instead of the cluster
With this change the host name can be specified (optionally)

See merge request !16

also restore functionality of the deprecated function.

this issue was introduced by commit #cf15be69