placeholder form class and unit test for it
Form now uses modelform, custom placeholder.
start writing test for form empty item validation. --ch09l046--
better test for form empty item validation. --ch09l047--
add init for form to set error message. --ch09l048--
better still, use a constant for the empty list error. --ch09l049--
use error constant in forms test. --ch09l050--
New unit test that home page view uses form. --ch09l051--
Use form in home_page view. --ch09l052--

Conflicts:
	lists/views.py
Use form in home template. --ch09l053--

Conflicts:
	lists/templates/home.html
use assertmultilineequal for debugging. --ch09l054--
Remove old unit test

Conflicts:
	lists/tests/test_views.py
ft helper method for finding input box. --ch09l057--
refactor fts to use get_item_input_box. --ch09l058--

Conflicts:
	functional_tests/tests/test_list_item_validation.py
Rename id_new_item to id_text in list.html and css. --ch09l059-1--
Rename input name item_text to text in views and template. --ch09l059-2--

Conflicts:
	lists/templates/list.html
	lists/tests/test_views.py

Conflicts:
	lists/tests/test_views.py
adjust unit test for new_list to check for form in error case. --ch09l066--
use form in new_list view. --ch09l067--
use form and show its errors in home.html. --ch09l068--
Add check that invalid new list form doesnt create list object. --ch09l069--

Conflicts:
	lists/tests/test_views.py