GH-83 Parsing ECL Watch Resource URL fails

Assumed the resource was in a sub-folder called "res".
Common up code (WsWorkunits + HIPIEWorkunit)

Fixes GH-83

Signed-off-by: Gordon Smith <gordonjsmith@gmail.com>
Merge pull request #88 from GordonSmith/GH-83

GH-83 Parsing ECL Watch Resource URL fails