Fix BaseType::addEntityFieldsToBuilder

1. Add two backslashes before 'Column' in regexp.
2. Extract PHPDoc in $doc.
3. Rename $match to $isColumn.
Overload UserType::buildForm - add jobs collection
Add counter hidden field to JobType

Counter hidden field is workaround for counting existing jobs in template.
Use it for determination of div containing job form.
Rewrite template for user's profile