single string parameters
fix parameter replace
admin and public translations
Merge branch '4.0' of github.com:impresspages/ImpressPages-CMS into feature-parameters

Conflicts:
	ip_cms/modules/developer/localization/additional_standard_form_fields.php
Merge branch '4.0' into feature-parameters
Fixed strings
Fixed strings
remove CMS constant check
fix plugin install for MultiSite
fix spaces
fix admin login if wrong domain is used. Fixes #314
merge 3.7
Merge branch '4.0' of github.com:impresspages/ImpressPages-CMS into 4.0
remove rss and user modules
fix plugins module
plugin file config
autosave config values
website title config
site email configuration
remove make actions on zone