* rework folder uploading
- flatterns hierarchy on folder upload
- performs a single traversal for the entire folder heirarchy and ends with a comple file list
- allows now dropping folders on existing folders
- overall code improvements
* fix unit tests
* readme updates
* clean old and unused code
* code cleanup
* limit concurrent uploads
* update code as per review
* fix upload button for Safari
* fixes for Safari
- Safari compatibility
- code updates based on review
* fix code
* fix unit tests
* coverage single components run fix
* remove spec.ts from coverage
* make the coverage and the istanbul-instrumenter-loader works only over the console test because a problem on the remapping for the browser test
* move tslint on the main folder of any component
* remove build:w from readme
* stop build tslint error also in spec files
* clear karma file from unnecessary files
* add set -f for build all script in order to accept *
* fix lint problem and failing tests
* fix failing test search component
* add loader test for viewer
* fix tslint error userinfo
* --max_old_space_size=2048 remove
* fix tslint error uploader unused EventEmitter
* remove spec|index|.*mock|.*model|.*event from coverage
* upload feature rework
lots of improvements for upload dialog and underlying services
* readme update
- readme cleanup
- remove some old comments from code
- update readme with new events for Upload Service
* restore prerequisites section in readme
* reload document list on folder upload
- extend UploadService with 'folderCreated' event to be able reacting on folder uploads globally
- extend Demo Shell to reload document list on UploadService events (folderCreated)
* readme updates
* Add the permission check on the activiti button
* Fix code after unit test
* Add basic documentation
* Improve the code and fix the missing file issue
* Fix unit test after refactoring
* remove duplicate log
* Fix typo `fallbackThubnail` -> `fallbackThumbnail`
* Fix typo `showUdoNotificationBar` -> `showNotificationBar`
Update upload mis-spelled properties to 'showNotificationBar' since
showUndoNotificationBar is already a method on the drag area component
Refs #1559
* Fix test cases
