Saved search form improvements [MJ-680]

Reorder labels and inputs
Fix issues with 'valid' label
Merge branch 'master' into mobile-saved-search-forms
CSS fixes [MJ-680]

Fixed url container
Improved formatting of is_active checkbox
Add placeholder, fix field names and label display [MJ-680]
Remove commented css [MJ-680]
Merge pull request #478 from DirectEmployers/mobile-saved-search-forms

Mobile Saved Search improvements [MJ-680]