* harbour/include/hbgtinfo.ch
+ added HB_GTI_FONTSEL
* harbour/source/rtl/gtxwc/gtxwc.c
+ added support for HB_GTI_FONTSEL
+ added support for HB_GTI_PALETTE
+ harbour/tests/gtxfnt.prg
+ added small demonstration/test code for HB_GTI_FONTSEL
and XWindow GTs
* harbour/source/rtl/hbproces.c
* replaced execv() with execvp() in *nix builds