Virtual detector GUI TCL code ready

 	modified:   acquisition.tcl
 	modified:   specfe-main.tcl
 	modified:   specfe.tcl
 	new file:   vdet_images/g4x4.gif
 	new file:   vdet_images/g_diag1.gif
 	new file:   vdet_images/g_diag2.gif
 	new file:   vdet_images/g_down.gif
 	new file:   vdet_images/g_hor1.gif
 	new file:   vdet_images/g_hor2.gif
 	new file:   vdet_images/g_hor3.gif
 	new file:   vdet_images/g_vert1.gif
 	new file:   vdet_images/g_vert2.gif
 	new file:   vdet_images/g_vert3.gif
 	modified:   xenocs-macros.mac
 	new file:   xenocs-settings.mac
xenocs-settings.mac added to git by mistake
 	deleted:    xenocs-settings.mac
 	modified:   DOCS/Configuration.rst
 	modified:   DOCS/UserGuide.rst
 	modified:   Makefile
 	modified:   acquisition.tcl
 	modified:   specfe-main.tcl