updated copyright for 2016
Updated copyright notice to 2015
Make SVGDIR a variable Replace all occurrences of SVGDIR in the source by svgDir, a char array that is initialized to SVGDIR, so that it can be altered at run time. This is needed to make portable apps. Where SVGDIR was used in string concatenation, the code had to be re-written to use snprintf to do the concatenation at run time, through a new function LoadIconFile. The extension of image files used there is now made dependent on the __APPLE__ switch, so that it can use .png in OS X (which does not seem to understand SVG icons).
Updated copyright notice to 2014
removed trailing whitespace
Updated copyright notice to 2013
Fix warnings The highTextStart/End are now declared in engineoutput.h, shared between nengineoutput.c and xengineoutput.c. Unused variables were removed. Also fix warnings in xboard.c and xoptions.c.
Delete emptied front-end files, and move rest to gtk directory Remove #ifdeffed-out Xt code that has GTK implementation. The xgamelist and xhistory have been completely cleared off content, and were removed.