Rafcon

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- Improvements:

- :issue_ghe:`530` automatically focus and adapt position of root state for fresh initiated state machines
issue title was "Root state out of focus and badly positioned"
- :issue_ghe:`543` Changing default option for library name while saving
-> for the default folder name white space are replaced with underscores and all is lower case
- also default library state name is now the folder name with replaced underscores with white spaces


- Bug Fixes:

- :issue_ghe:`527` RAFCON GUI loops while startup if HOME environment variable is not defined
-> a error message pointing on respective missing environment variable is added
- :issue_ghe:`539` grouping of states outcome transitions are not fully recovers (now bug is covered by test)
- :issue_ghe:`515` source editor does not show end of lines (finally)

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- Improvements:

- :issue_ghe:`529` accelerate the follow mode switch for many logger messages
- dynamic insertion of states during state execution is working and tested
- secure dynamic modification of state machines while runtime by test created in
pull request :issue_ghe:`535` Dynamic insertion of states during execution

- Bug Fixes:

- :issue_ghe:`515` source editor does not show end of lines (partly)
- :issue_ghe:`533` States inside library states cannot be selected
- :issue_ghe:`528` execution history destruction does not lead to max recursion depth

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- Features:

- :issue_ghe:`520` Debug Console keeps track of last logger message if the follow mode is enabled

- Improvements:

- in pull request :issue_ghe:`523` refactoring of debug console for more intuitive and robust behavior
e.g. persistent cursor position
- :issue_ghe:`516` source editor does not show line of cursor after apply if the script is big

- Bug Fixes:

- :issue_ghe:`519` rafcon freezes while opening a state machine
- solved in pull request :issue_ghe:`524` history elements hold direct state reference
- :issue_ghe:`514` text in entry widget of port not visible during editing (arrow key press left-right helps)
- the issue was not fully resolved but improved

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- Improvements:

- container state API can adjust output_data by new method write_output_data
- more robust execution history tree
- performance improvement by deleting gaphas views at once for recursive state destruction's

- Bug Fixes:

- :issue_ghe:`521` Strange gaphas logs during deletion of a state
- fix gaphas exceptions if state machine selection holds elements which gaphas has not drawn

""""""

- Feature:

- start RAFCON with `rafcon` instead of `rafcon_start_gui` or `rafcon_core` instead of `rafcon_start` (old
commands are still working)

- Improvements:

- buttons to forcefully lock or unlock a global variable
- global variable manager logger messages got new failure warning messages
- copy/paste for semantic data elements
- new config value SHOW_PATH_NAMES_IN_EXECUTION_HISTORY
- make library path in state editor overview selectable

- Bug Fixes:

- :issue_ghe:`503` scoped variable looks weird
- :issue_ghe:`505` clean up profiler flag in config
- :issue_ghe:`506` root state input ports leave ugly stripes behind
- :issue_ghe:`501` transition is not selectable if it is drawn over state
- :issue_ghe:`512` execution of second state machine cause freeze of stop on previous state machine was not successful
- :issue_ghe:`514` text in entry widget of port not visible during editing
- fix state machine tree remove library state
- no deadlocks when locking a global variable two times
- :issue_ghe:`502` changing data ports not possible
- fix state element weakref parent assigenment in case of tolerating a invalid data flow

""""""

- Improvements:

- updated documentation
- use verbose logging level instead of prints for modification history debug prints