Code completed as per B5.0 of book

However rake test is failing (as does rake test test/controllers/line_items_controller_test.rb)

Raising issue on http://forums.pragprog.com/forums/311

Signed-off-by: Ippoippo <ippoippo-software@ippoippo-eco.com>
Fix problem

Signed-off-by: Ippoippo <ippoippo-software@ippoippo-eco.com>
Last fix in module

Signed-off-by: Ippoippo <ippoippo-software@ippoippo-eco.com>
Page redesign

Now shows contents of cart

Signed-off-by: Ippoippo <ippoippo-software@ippoippo-eco.com>
Merge branch 'refs/heads/Iteration_D3'