Clarify language about truncation in the DCT to indicate that the truncated  values are signed.
Clarify language about truncation in the DCT to indicate that the truncated
 values are signed.


git-svn-id: 8dbf393e6e9ab8d4979d29f9a341a98016792aa6@14696 0101bb08-14d6-0310-b084-bc0e0c8e3800

KTXSoftware/theora,Distrotech/libtheora,Distrotech/libtheora,Distrotech/libtheora,Distrotech/libtheora,KTXSoftware/theora,Distrotech/libtheora,KTXSoftware/theora,KTXSoftware/theora,KTXSoftware/theora