Fixes validity issues with new admintoolbox
Zenphoto package was missing all files from basic theme
Zenphoto package once more
Remove obsolete select_files_button.png files from locale folders
Merge remote-tracking branch 'upstream/master' into upstream

Conflicts:
	zp-core/template-filters.php
	zp-core/template-functions.php
	zp-core/zenphoto.package

	deleted:    zp-core/locale/da_DK/select_files_button.png
	deleted:    zp-core/locale/de_DE/select_files_button.png
	deleted:    zp-core/locale/en_US/select_files_button.png
	deleted:    zp-core/locale/es_ES/select_files_button.png
	deleted:    zp-core/locale/fr_FR/select_files_button.png
	deleted:    zp-core/locale/gl_ES/select_files_button.png
	deleted:    zp-core/locale/he_IL/select_files_button.png
	deleted:    zp-core/locale/it_IT/select_files_button.png
	deleted:    zp-core/locale/ja_JP/select_files_button.png
	deleted:    zp-core/locale/nl_NL/select_files_button.png
	deleted:    zp-core/locale/pl_PL/select_files_button.png
	deleted:    zp-core/locale/ru_RU/select_files_button.png
	deleted:    zp-core/locale/sk_SK/select_files_button.png
	deleted:    zp-core/locale/sv_SE/select_files_button.png
	deleted:    zp-core/locale/tr_TR/select_files_button.png
	deleted:    zp-core/locale/zh_CN/select_files_button.png
	deleted:    zp-core/locale/zh_TW/select_files_button.png
	modified:   zp-core/zenphoto.package