fix(upload): make it edit HeadLine not description

SD-231
refactor(view): remove view helper and use require.toUrl instead
chore(angular): switch to 1.3 version
refactor(superdesk): remove superdesk.directives and superdesk.services

this is first step in order to have func based sub-modules not type based.
now we should group time related directives into single module (datetime)
etc.
refactor(superdesk): put date related directives into datetime
fix(dashboard): Added notification messages for world clock widget.

SD-136: World clock: add confirmation message when adding a clock
feat(media): Image preview and view

SD-266: Implement frontent view for default image metadata
feat(media): change item preview template