* Handling of time steps where coordinates are constant over a certain time period (GPS accuracy issue) set gradient to 0 to avoid division by zero
* Allow also non-continuous input data in *.csdat files

* Anemometer instrument calibration removed from CSE calculation
* Update of definition of beta-signal (180° = air flow from front)

* set criteria to "standard" when CSE opens
* store information when switching between tabs
* ResetCriteria and ImportCriteria do not clear main tab

  * Add control for beta angle <= 360° and calculation to +-180° if angle > +-180°
  * Update user manual
  * New Version number.

This reverts commit ac3d72cc.

  * Correction length calculation for the first section in the dat-file when there is a gap between the first and second MS.
  * Update length calculation in csms-file to check if specified length from user and coordinates are the same
  * New Version number.

  * Correction length calculation for the first section in the dat-file when there is a gap between the first and second MS.
  * Update length calculation in csms-file to check if specified length from user and coordinates are the same
  * New Version number.

Actualise the User Manual

* Removed unused cResults class.
* Minor fix in logging-window.

* Remove unused distVincenty() func.

* GUI: Set AboutBox to display version, move create-activation-code menu-item into tools.
* Restored result-files from running of the demo-data.
* Updated changes.

* GUI: Show wait-cursor for all Form when calculating.

* Changed comment symbol in declaration_public

* UI: Add InfoBox also for Job-fields (MainTab, no FileManu.
* main-form: Restruct AsynJob &  UIPopulate regions above,
* Read GenShape with exceptions.
* UI, log, async: Do not clear logMsg before starting async.
* json: Homogenize schema opt-arg "isStrict".

* job: FIX reading of OldJobFiles, broken by previous MainForm UI work.
* log: FIX (minor) doubl-log wrnings.
* UI: Improve the image of the "exec" buttons.
* Reset [TAB]-order on MainForm.

* json: Allow null for /Header/StrictBody.
* log: Show full ex in ErrorTab when logLevelThreshold <= 2.

* FIX type-bug in working-dir root/unroot utility func.
* Restructure F_Main.vb's regions and handlers.
* job-file: Enabled fpath patterns and make them optional/accept nulls/empty fpaths
* UI: Add ReloadJob button.

* json: Cache bodySchema since access frequently for defaults, etc.
* FIX various NPEs when app has started due to AsyncWorker and log.
* Update result-files into demo-data.
* STILL SINGLE TRACK FILE!

* prefs: Honor Prefs_to_be_stored when saving-them (i.e. /Header/HideUsername).
* DemoData: Add Criteria and update Job json-files.
* UI: Add images to save buttons.

* UI: Remove all values from Criteria textFields.
* UI: Rename tab-Options --> Criteria
* Cleanup some forgotten Global-vars.
* worker: Remove unused Error field.

* FIX calculation messed by missing coasting-file sequence indices, ~3 commit before.
* Apply Object-oriented design with resource-management when I/O files.
* log: rename main logging-routine to "log()".
* Catch and report with MsgBox early-start exceptions.
* Merge contents of CSE_Types.vb -->CSE_Globals.vb
* FIX: Use WorkingDir for all job-fpaths.
* FileDlg: FIX to work with multi.json extensions.

* errors: Add unhandled-exception handler logging to file.
* job: Make readOldJobFile() to throw ex on errors, and sensibly convert cbools.
* STILL BUG NPE when accessing dict-value at evaluation()-end.

* Read both old and json Job-files, write only Json.
* Restructure UI-code,
** move related funcs to F_MAIN class,
** remove Export_GUI.vb & utils_GUI.vb,
** move read Shape-file into Input.vb.
* FIX Start counting from 0 on arrays for Anemometer-factors and measurement-data.
* UI: Dropped dummy file-paths for unspecified job-files.
* log: gather all log-routines jn utils.vb.
* json: Change constructor sequence for cJsonFile-subclasses, require Body to be given on constructor.

* FIX WorkingDir handling when empty.
* prefs: Minor UI fixes, read defaults from schema.
* prefsUI: Show msgBoxes on errors.

* Minor text updates.

* Rework logging as a single routine, whether invoked from Background Worker or not.
* FIX (by above.) calculation-failur due to cJsonFile's log-msg in background-thread.
* logFile: Improve logs by always appending timestamps and better formating.
* FIX opening-msg to be the 1st thing be written in log-file.
* json: Cache Body/Header for performance.