d.text: rotate needs to rotate the background box too

[hamish]

Hi,

as pointed out by Rich Shepard on the users mailing list, d.vect fails to also rotate the background color-box along with the text.

there is already rendering code in d.labels to do this, it just needs to be incorporated into the d.text code.

Also, if you had set the background color to "none" it was still getting drawn but using the same color as the text. I've just fixed that in 6.5svn (r40214). Previously the test for drawing background was just if the bgcolor= option was used at all.

Hamish