Initial commit: add password fields for plugins
editProject should load and track correct values
untrack resource model configs using correct indexing
Update tests
Add failing test for adjust method
Use object as key instead of string
Cleanup
Add test for null value input
Test missing password field value in config file
untrack handles null input value
track handles missing/null config property input
Don't show summary password bullets if property is not set
Add property builder convenience methods for textarea/password

update javadoc
Add documentation about plugin property rendering options
Fix tests for request token usage
Merge pull request #919 from gschueler/feature/password-fields

Security: allow plugins to specify password properties that are obscured in project config page