Yanggui

Bugfixes:
- Fixed an issue where the about dialog did not show the correct version of the tool

Improvements:
- Improved x-axis labels of graph viewer to show seconds elapsed since first data point was added

Bugfixes:

- Fixed an issue that could occur when switching between yang libraries
- Fixed an issue that caused incorrect strings to be generated when a node had multiple patterns defined through regular expressions

Bugfixes:

- Fixed an issue due to which newly created fields did not display the correct string

Improvements:
- Save option is now disabled when no valid data file is known
- Save Data As option added to the YANG menu
- The config file now has a title equivalent to the application

Bugfixes:
- Fixed an issue that could occur when inserting a list entry into an empty list with the list viewer

Improvements:

- Making use of default values in YANG model when creating new data nodes
- When performing a GET operation for a node which does not exist, it is first created and then the GET is performed
- Providing dropdown choices for possible leafref values (including when inside a leaf-list)
- Updating the way that lists and containers are represented in the GUI. The overview of its contents is now based on the representation of the child properties. List viewer shows more details of children which are containers

Bugfixes:
- error in bits editor dialog fixed

Improvements:
- table entry navigation added to list property
- get/put operation for entire list added to advanced operation menu of a list entry