Fixes the regression where the viewport is way too large after an optimal zoom operation (cf. #660).

* b_sym field to t_textbuf
* 2nd inlet and "send" method for text define
* text insert class
* improve a stray evalfile error
* show the [text] name (if it exists) in the title for the window
* updates help doc accordingly

Ivica Bukvic authored 4 years ago and Albert Gräf committed 4 years ago

Fixed regression from the plot fixes that broke non-plot scalars. TODO: check if non-plot scalar matrix needs to be tweaked...