Improve buildsite.py include mechanism (HTML)
Improve buildsite.py include mechanism (HTML)

Add HTML include support to the include mechanism.  This is useful for
including repetitive snippets into guide/API pages.

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