Move #includes in XSBind.h outside of extern "C" block
Move #includes in XSBind.h outside of extern "C" block

MSVC6 complains if math.h is included in an extern "C" block when compiling
in C++ mode.

(Application of 0228d3280d to duplicate file.)

kidaa/lucy,rbevers/lucy,apache/lucy,pombredanne/apache-lucy,apache/lucy,apache/lucy,nwellnhof/lucy,rbevers/lucy,rbevers/lucy,apache/lucy,rbevers/lucy,pombredanne/apache-lucy,rectang/lucy,rectang/lucy,apache/lucy,kidaa/lucy,nwellnhof/lucy,kidaa/lucy,kidaa/lucy,apache/lucy,kidaa/lucy,rectang/lucy,rectang/lucy,rectang/lucy,rectang/lucy,rbevers/lucy,rectang/lucy,pombredanne/apache-lucy,kidaa/lucy,pombredanne/apache-lucy,kidaa/lucy,kidaa/lucy,apache/lucy,rbevers/lucy,rbevers/lucy,pombredanne/apache-lucy,nwellnhof/lucy,nwellnhof/lucy,pombredanne/apache-lucy,pombredanne/apache-lucy,nwellnhof/lucy,nwellnhof/lucy,nwellnhof/lucy