Merge pull request #3 in VECTO/vecto-cse from ~ANAGNKO/vecto-cse:master to master

# By ankostis@host:STUW025
# Via ankostis@host:STUW025
* commit 'eff38dad':
  Minor text.md edits for pull-requesting.
  Logging-2: single-logging routine
  Resturcture Modules and Folders
  FIX WorkingDir relative-path error.
  Converted cVehicle into JSON!
  Rework logging routines
  Link JSON to GUI controls (labels & toolstips)
  More JSON and Prefs Enhancements
  json: rework IO code.
  vehicle: Rename fields to prepare for JSONize.
  restructure: drop Tools folder.
  json: Split parsing into Header/Body and use a parent-class for header.
  Rename GUI classes: CSE_XXX-->F_Main to conform to a single naming-scheme for both VECTO and CSE.
  Rename Settings-->Preferences
  GUI: FIX "Calibrate" button not to change to "Evaluate" after completion.
  FIX Working-dir to work with relative-paths