qgis_gui.po update ja
	modified:   i18n/ja/LC_MESSAGES/docs/documentation_guidelines/do_translations.po
Merge branch 'manual_en_v1.8' of https://github.com/qgis/QGIS-Documentation into manual_en_v1.8
Merge branch 'manual_en_v1.8' of https://github.com/qgis/QGIS-Documentation into manual_en_v1.8