need 2 blank lines
Combine atom_elements and atom into atom and add PersonConstruct
Use instance method
Implement Atom date construct
Correct parameters
Implement Atom category
element_name needed
Use AtomContributor in parser
Implement AtomLink
Implement AtomGenerator
Implement AtomIcon
Implement AtomLogo
Find entries when it needs to parse entries
Implement AtomContent
Remove old parsing functions
pep8