Link the msg* and xgettext programs against libtextstyle.
* libtextstyle/autogen.sh: Don't generate lib/color.h and lib/color.c.
* libtextstyle/lib/color.h: Moved to here from gettext-tools/src/color.h.
* libtextstyle/lib/color.c: Moved to here from gettext-tools/src/color.c.
* autogen.sh (GNULIB_MODULES_TOOLS_FOR_SRC): Remove fd-ostream, file-ostream,
html-styled-ostream, ostream, styled-ostream, term-styled-ostream. Add libxml.
* gettext-tools/gnulib-lib/Makefile.am (MOOPPFLAGS): Remove customization.
* gettext-tools/gnulib-tests/Makefile.am (test_term_ostream_LDADD): Remove
customization.
* gettext-tools/src/Makefile.am (noinst_HEADERS): Remove color.h.
(AM_CPPFLAGS): Add -I directives to the libtextstyle/lib directory.
(libgettextsrc_la_SOURCES): Remove color.c.
(libgettextsrc_la_LDFLAGS): Link with libtextstyle.la.
* gettext-tools/src/FILES: Update.
* gettext-tools/src/write-catalog.h: Include <textstyle.h> instead of ostream.h.
* gettext-tools/src/write-catalog.c: Include <textstyle.h> instead of color.h
and *-ostream.h.
(msgdomain_list_print): Use styled_ostream_create and
noop_styled_ostream_create.
* gettext-tools/src/write-po.h: Include <textstyle.h> instead of ostream.h.
* gettext-tools/src/write-po.c: Include <textstyle.h> instead of *-ostream.h.
(is_stylable): Remove function.
(begin_css_class, end_css_class): Update. Mark as inline.
* gettext-tools/src/write-properties.c: Include <textstyle.h> instead of
ostream.h.
* gettext-tools/src/write-stringtable.c: Likewise.
* gettext-tools/src/msgattrib.c: Include <textstyle.h> instead of color.h.
* gettext-tools/src/msgcat.c: Likewise.
* gettext-tools/src/msgcomm.c: Likewise.
* gettext-tools/src/msgconv.c: Likewise.
* gettext-tools/src/msgen.c: Likewise.
* gettext-tools/src/msgfilter.c: Likewise.
* gettext-tools/src/msggrep.c: Likewise.
* gettext-tools/src/msginit.c: Likewise.
* gettext-tools/src/msgmerge.c: Likewise.
* gettext-tools/src/msgunfmt.c: Likewise.
* gettext-tools/src/msguniq.c: Likewise.
* gettext-tools/src/xgettext.c: Likewise.
