2013-11-15. Tony Wang. Bug fixes, updates caused by contract, new code
for load form export.
- allfiles_controller - update to existing parser to handle only entries
under valid contracts
- static_page_helper - latest code for load form export being tested on
help page
- contract model - update model to enforce all columns, permanent
contracts are now represented by end date of year 3000
- employee model - added has_many contracts
- lib/tasks/td - modified tdp_users task to create contracts along with
users. Admins get permanent contract while regular users get 1 year
contracts