chore(build): use 'client/' as dist folder
fix(userTask): correct the modal window template path
fix(dashboard): use ng-hide/ng-show directives

...instead of ngm-if directive. The ngm-if directive is not available
anymore.
fix(delete): use engine rest interface for delete

adds action which uses engine rest interface for deleting a
process instance

Related to: #CAM-1530
feat(pi/variables): support spin-serialized variables

Support displaying and updating of spin-serialized variables in cockpit.

related to #CAM-2759
fix(suspension): delayed suspension or activiation now works

related to CAM-2764
impr(variables): handling of Object values

- Object values are initially fetched with "deserializeValues" = false
- Inspector dialog allows retreiving the deserialized value (if
available)
- Both serialized and deserialized value can be edited.

related to #CAM-2887
fix(variables): reset values on tab selection

related to CAM-2887
Add 'webapp/src/main/webapp/plugin/base/app/' from commit '13bfbb9019b86a0fe0eb2f4f0d26a8743ba24d5c'

git-subtree-dir: webapp/src/main/webapp/plugin/base/app
git-subtree-mainline: 7f863dbca647a9b172fa39ab51383f6d828cc8d6
git-subtree-split: 13bfbb9019b86a0fe0eb2f4f0d26a8743ba24d5c