Capitalize shared|community visibility for images
Added new visibility type `shared` and `community` to be
displayed in capital case as `Shared` or `Community` in
image listing page.
Similar to
`public` ==> `Public`
`private` ==> `Private`
`
Closes Bug:
var imageVisibility = {
'public': gettext('Public'),
'private': gettext('Private'),
+ 'shared': gettext('Shared'),
+ 'community': gettext('Community'),
'other': null,
'unknown': gettext('Unknown')
};
