Add encoder_disabled.c to the distribution.
Add encoder_disabled.c to the distribution.

This is an optional file which supports the --disable-encode option to 
configure. Such source files must be listed separately in EXTRA_DIST
to be included in a release.


git-svn-id: 8dbf393e6e9ab8d4979d29f9a341a98016792aa6@16576 0101bb08-14d6-0310-b084-bc0e0c8e3800

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