CLOUDSTACK-1226: Fix 4.1-new-db-schema.sql, use cloud before exec statements

Signed-off-by: Rohit Yadav <bhaisaab@apache.org>
CLOUDSTACK-710: mkdir -p destination before scp-ing file in CitrixResourceBase

- Assumption is that mkdir is available on xen host
- We don't know what kind of file we're copying, dirs would have 0777 permission
  by default

Signed-off-by: Rohit Yadav <bhaisaab@apache.org>