Add example for template file with path.

refs #130
Allow for template files with paths.

refs #130, #133
Jobfile v2: add 'jobtype' and 'executable'.

Allows for specifying the executable to be run on the remote machine, primarily
to specify the location of 'hucore' in case it is a non-default installation.
refs #130, #133
Move 'hucore' specific parsing to separate function.

refs #130