- update to 5.4.5:
* NEW "set key offset , " tweaks placement of the key
* NEW data-driven histogram colors
* CHANGE re-order 3D labels to come after pm3d depthorder surfaces
* CHANGE hpgl: add terminal option "fontscale "
* CHANGE for nonuniform matrix data, column(0) returns linear position in
matrix
* CHANGE set pointintervalbox 0 disables drawing the background box Bug
* FIX svg: hypertext font handling
* FIX track columnheaders of multiple data blocks in a single file Bug
* FIX Clean up positioning of polar border, raxis, and theta tics Bug
* FIX Autoscaling of logscaled raxis
* FIX memory corruption if a small plot structure is recycled Bug #2550
* FIX Windows qt terminal: "pause -1" should not block mousing Bug
* FIX promotion of string to integer should not assume leading 0 means
octal (forwarded request 1043480 from dirkmueller)