CMS-1070 Space Admin - Space Edit form

Implement first version of New/edit space form according to the attached design. (Leave all other steps empty)

NB! Ignore the "move" button in action menu
CMS-1070 Space Admin - Space Edit form

Show edit space form on new form action.
Merge pull request #123 from enonic/CMS-1070

CMS-1070 Space Admin - Space Edit form