- added new type of plot: Categorized Bar Plot. This plot it's useful for plotting categorized values over the time. For example Device Status or State of some process in time.
- added new Tick format: Duration with short or long text format. It's useful to display duration in human-readable form. For example 1h 15s or 1 Hour 15 Sec. Accepted value is number of seconds.
- few minor bug and typo bug fixes