add documentation for DUK_OPT_NO_MARK_AND_SWEEP, and some memory management options text
add documentation for DUK_OPT_NO_MARK_AND_SWEEP, and some memory management options text

daimajia/duktape,eddieh/duktape,haosu1987/duktape,thurday/duktape,reqshark/duktape,sloth4413/duktape,reqshark/duktape,nivertech/duktape,nivertech/duktape,nivertech/duktape,thurday/duktape,pombredanne/duktape,chenyaqiuqiu/duktape,harold-b/duktape,skomski/duktape,chenyaqiuqiu/duktape,eddieh/duktape,thurday/duktape,harold-b/duktape,thurday/duktape,sloth4413/duktape,tassmjau/duktape,kphillisjr/duktape,jmptrader/duktape,zeropool/duktape,skomski/duktape,tassmjau/duktape,markand/duktape,sloth4413/duktape,nivertech/duktape,markand/duktape,daimajia/duktape,kphillisjr/duktape,harold-b/duktape,harold-b/duktape,rwaldron/duktape,eddieh/duktape,eddieh/duktape,zeropool/duktape,skomski/duktape,sloth4413/duktape,reqshark/duktape,skomski/duktape,kphillisjr/duktape,markand/duktape,tassmjau/duktape,pombredanne/duktape,nivertech/duktape,kphillisjr/duktape,svaarala/duktape,thurday/duktape,kphillisjr/duktape,zeropool/duktape,kphillisjr/duktape,zeropool/duktape,nivertech/duktape,eddieh/duktape,eddieh/duktape,reqshark/duktape,markand/duktape,eddieh/duktape,harold-b/duktape,svaarala/duktape,markand/duktape,thurday/duktape,svaarala/duktape,svaarala/duktape,reqshark/duktape,thurday/duktape,reqshark/duktape,skomski/duktape,reqshark/duktape,chenyaqiuqiu/duktape,markand/duktape,jmptrader/duktape,nivertech/duktape,tassmjau/duktape,nivertech/duktape,tassmjau/duktape,svaarala/duktape,zeropool/duktape,jmptrader/duktape,zeropool/duktape,sloth4413/duktape,sloth4413/duktape,haosu1987/duktape,pombredanne/duktape,markand/duktape,reqshark/duktape,chenyaqiuqiu/duktape,harold-b/duktape,sloth4413/duktape,skomski/duktape,pombredanne/duktape,daimajia/duktape,rwaldron/duktape,pombredanne/duktape,zeropool/duktape,haosu1987/duktape,skomski/duktape,tassmjau/duktape,haosu1987/duktape,svaarala/duktape,haosu1987/duktape,tassmjau/duktape,chenyaqiuqiu/duktape,harold-b/duktape,jmptrader/duktape,kphillisjr/duktape,chenyaqiuqiu/duktape,pombredanne/duktape,markand/duktape,haosu1987/duktape,rwaldron/duktape,svaarala/duktape,haosu1987/duktape,nivertech/duktape,eddieh/duktape,reqshark/duktape,tassmjau/duktape,tassmjau/duktape,daimajia/duktape,daimajia/duktape,haosu1987/duktape,harold-b/duktape,skomski/duktape,jmptrader/duktape,jmptrader/duktape,pombredanne/duktape,sloth4413/duktape,haosu1987/duktape,reqshark/duktape,thurday/duktape,haosu1987/duktape,thurday/duktape,zeropool/duktape,skomski/duktape,harold-b/duktape,eddieh/duktape,chenyaqiuqiu/duktape,chenyaqiuqiu/duktape,nivertech/duktape,skomski/duktape,chenyaqiuqiu/duktape,rwaldron/duktape,markand/duktape,rwaldron/duktape,zeropool/duktape,jmptrader/duktape,tassmjau/duktape,eddieh/duktape,kphillisjr/duktape,chenyaqiuqiu/duktape,pombredanne/duktape,sloth4413/duktape,thurday/duktape,jmptrader/duktape,kphillisjr/duktape,harold-b/duktape,sloth4413/duktape,pombredanne/duktape,zeropool/duktape,rwaldron/duktape,kphillisjr/duktape,svaarala/duktape,daimajia/duktape,svaarala/duktape,jmptrader/duktape,markand/duktape,pombredanne/duktape,jmptrader/duktape