symbols cleanup
	renamed some flags for consistency
	obey casing rules for symbol names ( case sensitive for unix like )
	deleted the setenv code
	proper stacking of symbols values
	some non symbols related mods ( cosmetics ??? )
	tested on ...
	Yosemite(CLANG), Centos-6(GCC), Centos-7 (CLANG and GCC)
	( reinstalling windows XP under VMware takes longer than planned )