* new UI for parts support of SWITCH node
* update UI of SWITCH node for parts support
* add server side code of new SWITCH node
* update info document of SWITCH node
* add tests for new SWITCH node features
* add test for too many pending messages & related fixes
* fix handling when msg is undefined
* tabs -> spaces
* fixed meaning of "repair sequence" in SWITCH node docs
* add a note on restricting internally kept messages
* change label and position in menu of "pos. between" rule
* fixed typos (again, sorry)
* initial support of merge mode of JOIN node
* initial support of reduce mode of JOIN node
* update info document of JOIN node
* add tests for merge & reduce mode of JOIN node
* tidy tabs & spaces
* add test for too many pending messages & related fixes
* add an test for reduce mode of JOIN node
* change order of modes of SWITCH node
* add initial topics entry of merge mode
* fixed descriptions on "reduce right" checkbox
* fixed update of typedInput field of reduce mode
* fixed a typo in info document of JOIN node
* allow empty string in JSONata input field of reduce mode
* fixed a typo
* fixed error in reduce mode description
* initial support of BATCH node
* add concat mode & fix for docs and js code
* add tests for BATCH node
* minor correction of typo
* allow interval in float
* fixed message catalog
* add test for too many pending messages & related fixes
* update info document on batchMaxKeptMsgsCount
* fixed close callback
* fixed info document
* add initial topics entry of concat mode
* Let debug optionally target the status line (32 chars only)
* Add batching of messages to debug ws comms
* let Debug handle simple case of NaN
would also close#1530
* Fixup debug tests for batch comms (no new tests yet)
* mixup comms/api test to match new batch mode (no new tests)
* Add test for NaN being sent OK.
* redo original fix to padding / labels for new debug options
* fix debug test (re-add fix from #1444)
* Fix up merge issues in debug tests
* inject once with delay
* test for inject delay at once works
* give access to the once delay of the inject node
* change event not needed in HTML
* code review with Dave
* rename test
* tests for default and optional delay
* test once with delay and repeat