Upload each submission to a different dir
Add -d parameter to ascp cmd; thanks @wasade!
BUG: ebi_dir -> self.ebi_dir
Add has_access methods and tests
Check access to template, not study

Fixes #542
Remove has_access methods, add study_id properties
Do study access check in handler
Add tests for study_id properties
Merge pull request #553 from adamrp/ebi_ascp_dir

Upload each submission to a different dir
Merge pull request #558 from adamrp/metadata_template_has_access-issue-542

Check access to metadata template rather than study on Metadata Summary