ID Pattern continued

*New example: folder with contained files as list
*Changed original folder example to filesystem
*List of examples:
**Files: standard pattern
**Filesystem: ID pattern simple example
**Folder: ID pattern complex structured example
*Index support in ID pattern
*Adapted connection creation
*Added creation and deletion of inner file
*Corrected experimental note
*Allowed usage of PictogramElementContext method without warning in
client coding
*corrected formatting, removed warnings

Change-Id: Iad470c44f365627e9c3316d938454eb26b6aa9fb
26 files changed
tree: 4fa1fe381432d13221eb1cbfcb4d847a296d2fb0
  1. examples/
  2. features/
  3. plugins/
  4. releng/
  5. tests/