Move ximagesrc plug-in to good after review.  Fixes #336756.

Original commit message from CVS:

* configure.ac:
* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-good-plugins-docs.sgml:
* docs/plugins/gst-plugins-good-plugins-sections.txt:
* ext/annodex/gstcmmlenc.c: (gst_cmml_enc_class_init),
(gst_cmml_enc_push_clip):
* sys/Makefile.am:
* sys/ximage/Makefile.am:
* sys/ximage/gstximagesrc.c:
Move ximagesrc plug-in to good after review.  Fixes #336756.
9 files changed