Merge pull request #126 from GordonSmith/EPE-49_ServerValidation

EPE-49 Validate Server prior to Submit.

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
EPE-77 Add Submit/Compile Server/Target selection within editor

Fixes EPE-77

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>