Add commented alternate title search field to classic UI (#5229)
Add commented alternate title search field to html5 UI (#5229)

* Add options in Settings.js for title and alternate title advanced search
(GeoNetwork.searchDefault.advSearShowTitleField and GeoNetwork.searchDefault.adbSearchShowAltTitleField    )
Replace textField title by an autocomplete field

Replace title TextField by an new Ext.ux.form.SuperBoxSelect able to make
suggestions.
Merge pull request #452 from juanluisrp/5229-search-by-alternate-title

Search by title and alternate title in advanced search (in html5 and classic UI)