pidgin/pidgin

Install our appdata file to $(datadir)/metainfo as that change was made a long time ago

This patch originates from Lars Wendler from Gentoo

https://gitweb.gentoo.org/repo/gentoo.git/commit/net-im/pidgin/files/pidgin-2.13.0-metainfo.patch?id=2dd6c1852251b5b67c3045badf173be9535b97a9

Testing Done:
Installed to a prefix and verified the file ended up in `$prefix/share/metainfo`

Reviewed at https://reviews.imfreedom.org/r/607/
schemadir = @GCONF_SCHEMA_FILE_DIR@
EXTRA_DIST = purple.schemas.in
if INSTALL_I18N
schema_in_files = purple.schemas.in
schema_DATA = $(schema_in_files:.schemas.in=.schemas)
@INTLTOOL_SCHEMAS_RULE@
if GCONF_SCHEMAS_INSTALL
install-data-local:
GCONF_CONFIG_SOURCE=$(GCONF_SCHEMA_CONFIG_SOURCE) $(GCONFTOOL) --makefile-install-rule $(schema_DATA) 2>&1 | \
grep -v "^WARNING: failed to install schema" | grep -v "^Attached schema" 1>&2 || true
else
install-data-local:
endif #GCONF_SCHEMAS_INSTALL
DISTCLEANFILES= purple.schemas
endif #INSTALL_I18N