add rake tasks for mysql db backups/restores
Extract request for patch endpoint
Test response for unauthorized user
Test work package update for valid attributes
Set writeable WP attributes
Re-activate WP patch endpoint

This commit reverts 450a8ec1 and c5fe2f63
postgresql db backups
add specs for backup task
whitespace fixes and other minor things
only sanitize_filename the actual filename
do not use the PGPASSFILE if no password is provided
db backup filename depends on db adapter
pg_dump needs the database name as the last param
Test write permissions for WP parent
Authorize parent id update
Validate new parent id
Correct supported operations
Add description for WP's parent id attribute
Update WP patch example request
hide parent manipulation controlls if user lacks permission