! in plumbUnit() corrected posX and posY assignment to uni

+ added timelineController and simulationController
+ added simulator.html containing code to be loaded on demand by jquery
# changed fromJSON() in ContextInformation and ContextInfoList: the former now makes a "deep cast" incl. parameters, simplifying the latter
+ added reset functions to Parameter, ContextInformation and ContextInfoList for resetting chosen values to ""
+ added getScenarioContext() to Scenario and getContextInformation() to AuthorSystemContent: return lists of context items added to units in the author system
+ added hasContext() to Scenario and AuthorSystemContent: returns true if context has been added to a unit by the author
- removed now superfluous event handler from main (was there for testing download)
+ added new event handler to simulatorController

+ added custom jquery-ui css and js files
+ added timeline controller and css

+ authorSystemContentModel.js: added getContextInformation() which returns a list of all added context items
+ index.html: in horizontal top menu bar: re-added statistics-menu (for downloading that list)
+ main.js: added event handler for that menu: download list
+ added possibility to convert JSON objects to ContextInformation, including Parameter, and generate a ContextInfoList from them
+ added function addItem() to ContextInfoListModel

# in contextTabController: compactified DOM element attribute assignments
# replaced almost all "===" with "=="
+ added Boolean context values as enums in xmlParser (to access them later in contextInfoController)

# in locationInfoMapViewController: some minor changes to make map work again

# moved event handlers for connections from canvasController to relationTabController
# moved initUnitEventHandlers() from canvasController to unitController
# moved chooseMetaIcon() from unitController to formatSelections
+ added optional index parameter to addContextInfo() in unitModel
+ added getItemByID() to contextInfoListModel
# started correcting German umlauts in dictionaries
# changed data structure of array_multiSelectionContextInfos:
   1. "id" is now context ID, "text" its translation;
   2. new items now get pushed to the end of the array, changed items stay where they are
# changed changeColorMultiContextInfos() into formatMultiContextInfosElements()
TODO: editing items in multi selection does not work as it should (see latter changes)

+ added function to get unit from entire author system content by its UUID
- in contextInfoModel: removed unnecessary complexity in value object
+ in contextInfoModel: added each part of former value object as context info property + getter and setter functions for each
# completed changes towards consistent usage of models: contextInfo, parameters, unit, authorSystem
# completed changes in checkInformation(), drawing information from model structure instead of view
# renamed parameter input and select fields and divs with generic ID "parameter"+i and "divParameter"+i, resp.
# untangled event handlers for clicked or dragged units and properties tab from "blob" activateFunctionalities()
# replaced (use and function of) global var global_currentInputUnitName with global var currentUnitUUID
# made variable currentConnectionID global

# replaced unit DOM element IDs "stateX" with UUIDs
# further merged, simplified, and corrected code (matching new data models)

- removed metadataTabController script tag from html
# overall replacement of myAuthorSystem with instance of AuthorSystemContent model

# renamed divContextParameters (+ temporary changes in index.hmtl, will be overridden soon)
- removed metaData tab which was a mere placeholder for Tom's CMS work
+ added metaData dictionary
+ added functions addMetaDataToUnit() and removeMetaDataFromUnit()
# changed parameter access and collection in contextInfoController and locationInfoMapController
# moved "get current unit dictionary" code into function getCurrentUnitDataModel()

# re-added "template" divParameterSelection in index.html to test select2 plugin (flat ui) on clone
# TODO: fix async select2 rendering (not working with dynamically generated DOM elements)

# event handler and functions for modal windows are separated in different files located in /js/mvc/controller/modalWindows

# renamed reloadController.js authorSystemController.js
+ added two fake parameters to measurable-context-information.xml for testing
# moved cleanSections() to tabs.js
+ tried to make #selectOperator invisible on showDetailedContextInfo
# simplified context class color selection
# moved some functionality around so that nothing works anymore... (to be undone)

# un-refactored (in parts) overall project structure: removed (yet) hardly used modalWindows files, added controllers files
# updated (as of yet unsued) contextInfoModel
# put several pieces of functionality in their (for now) right-er places, like e.g. addUnitToScenarioModel(), addUnitToMenu(), ...
- removed redundant replaceMarker2()
+ translated enums in contextTab filler

# unobtrusified add-contextinfo-button-click-event-showcontextinfo-function (added listener to fillContextTab())

# adjusted all context info access to translation calls
# simplified icon selection and formatting, keeping icon sources in dictionary

# transferred translations from contextInfoList to where they're rendered (translations belong to view, not model)
# started on dictionaries for translations and icons

# changed usages of old array_contextInformations (now contextList; using key identifiers instead of indices)
# serialized whole process (before: async), starting from main.js
# updated ContextInfoList structure description (comment): from array of arrays to array of objects

# [xmlParser] transformed array_contextInformation into more easily accessible object (renaming and cleaning up a little, while at it)

# refactored functionaliies.js into reloadController.js (comparison: function preserved)
# in reloadController.js: changed jQuery.ready into jsPlumb.ready due to delayed inst initialization
# simplified metaIcon choice and adding
# moved more code from general (tabs, modalWindows) to more specific files (metadataTabView, createScenarioModalWindowView, ...)
+ added propertyTab.js
- removed several unnecessary files from MVC scaffold

# further refactoring toward MVC

# started refactoring for JSON-LD A-Box generation, replacing German translations with original context identifiers
# renamed statemaschine to statemachine
# simplified xmlParser code a little

# corrected translation "Lernklumpen"
# moved external libraries to directory "vendor"
+ generated jsdoc (in /doc/out)

 - not allowing self loops anymore
 - add button only activating after scenario creation
 - page header size problem

 - add possibility to change scenario name
 - add connection label name selection in tab bar
 - add icons in context information

 - improve input field in create scenario
 - add delete unit button in tab "Eigenschaften"
 - add light load scenario
 - show tab container only after unit clicking
 - design: all cancel button are now grey

 - add unit deletion
 - delete default scenarios
 - error message after modal window closing fixed

 - google maps included
 - all context information and meta data with an icon where shown only with icons
 - modal window "Delete Scenario" was changed