French Update
Merge remote-tracking branch 'origin/master' into 1.4.6

Conflicts:
	zp-core/locale/fr_FR/LC_MESSAGES/zenphoto.mo
	zp-core/locale/fr_FR/LC_MESSAGES/zenphoto.po
proper documentation of deprecated functions
sort the function list
sort the other list elements naturally
Defines if PHP < v5.4
Fixes typos.