RDB CRUD under new path and processor
- Using a processor so we can control the return code.
- Switching to a new path so tests can run against the new implementation.
RDB CRUD to handle data URLs (in addition to form)
Form version must be provided when storing data
Adding missing MySQL driver after upgrade
Fix: MySQL driver file name changed
Use password for orbeon_ddl user, for consistency
Consistently refer to database user
Show MySQL version

To debug SQL not understood on Travis.
Minor: don't show MySQL version
Install MySQL 5.6
Try not escaping '+' and '/'
Escape '/' in sed expression
Double escape for YAML
See updated MySQL config
Also escape '+'
Use @localhost when dropping user