fix a bug in ABS.cpp:SizeInByte
fix a bug in ABS::SizeInByte
add ignore
Update .gitignore

complete .gitignore
complete ignore
complete .gitignore
disable some couts
fix a bug of lookuptables
rename WT_node to BitMap
speed up drawbacksearch...
update readme
clean the antiqued codes
ready for speed up drawbacksearch
framework is ok
speed up drawback-search works,it's faster
drawback-search works faster 25-35%