Allow non-standard \$ escape inside char classes
Allow non-standard \$ escape inside char classes

See GH-19.

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