fix signature model
use parent/child semantic instead of whole/part
use hide/lock config instead of view/edit
add validation method and fix usage of directives
adapt webclient and ACL changes
0.1 Release
adapt upstream
requires upstream
reassign updated recipient association

 * only use default recipient type at creation
 * simplify button creation
configure public Maven repository
add Selenium IDE walkthrough.xml
Merge with upstream changes.