Rename AC_PROG_SWIG to AX_PKG_SWIG.
Rename AC_PROG_SWIG to AX_PKG_SWIG.

Summary:
AC_PROG_SWIG is renamed to AX_PKG_SWIG in the latest macros.

vashstorm/HyperDex,hyc/HyperDex,hyc/HyperDex,pombredanne/HyperDex,jtk54/HyperDex,rescrv/HyperDex,tempbottle/HyperDex,UIKit0/HyperDex,hyc/HyperDex,rescrv/HyperDex,tempbottle/HyperDex,jtk54/HyperDex,cactorium/HyperDex,cactorium/HyperDex,tempbottle/HyperDex,pombredanne/HyperDex,rescrv/HyperDex,pombredanne/HyperDex,jtk54/HyperDex,vashstorm/HyperDex,vashstorm/HyperDex,UIKit0/HyperDex,tempbottle/HyperDex,tempbottle/HyperDex,jtk54/HyperDex,cactorium/HyperDex,UIKit0/HyperDex,cactorium/HyperDex,pombredanne/HyperDex,pombredanne/HyperDex,rescrv/HyperDex,vashstorm/HyperDex,hyc/HyperDex,rescrv/HyperDex,jtk54/HyperDex,pombredanne/HyperDex,jtk54/HyperDex,UIKit0/HyperDex,vashstorm/HyperDex,vashstorm/HyperDex,vashstorm/HyperDex,pombredanne/HyperDex,vashstorm/HyperDex,cactorium/HyperDex,pombredanne/HyperDex,cactorium/HyperDex,hyc/HyperDex,rescrv/HyperDex,tempbottle/HyperDex,cactorium/HyperDex,hyc/HyperDex,hyc/HyperDex,jtk54/HyperDex,hyc/HyperDex,UIKit0/HyperDex,pombredanne/HyperDex,tempbottle/HyperDex,rescrv/HyperDex,jtk54/HyperDex,rescrv/HyperDex,vashstorm/HyperDex,UIKit0/HyperDex,tempbottle/HyperDex,rescrv/HyperDex,UIKit0/HyperDex,UIKit0/HyperDex,UIKit0/HyperDex,jtk54/HyperDex,cactorium/HyperDex,tempbottle/HyperDex,cactorium/HyperDex