start on Rails4 support
set_primary_key and set_table_name have been deprecated.
test/unit has moved to test/models
update hobo_field's activerecord hook for Rails 4
Rails4: sprocket helper has moved
Rails4: secret now may be in secret_key_base
Rails4: the sprockets helper need access to some variables in the view
Rails 4: routes match => get
Increase compatibility with ActiveSupport's try.
Rails4: apply_finder_options has moved to DeprecatedMethods
Rails4:  create renamed to create_record
Rails4:  ActiveRecord::Associations::Builder::HasMany.valid_options moved to Association
Rails4:  FIXME.  commenting out essential code just to move forward
Rename create_without_hobo_permissions_check to create_record_without...
Add protected attributes to the Gemfile when creating a new Hobo app
Fix virtual path issue with automatic Hobo templates
Simplify recognize_page_path, as url_for(params) stopped working in Rails 4

This change might break some other stuff, but it's good enough to continue testing Rails 4 + Hobo
Add POST login route
Fix redirect after destroy
Fix edit form: checking a nil attribute does not make sense