Fix route names
Fix the fix on route names
Fix the pdf link
Better redirection handling in activity edition
Fix next activity form ajax behaviour

If you made an error and submit again, it wasn't ajaxified anymore
That was due to the fact the options passed to the form creation the
first time were not used in the ajax view, here we fix it.
Put it in alphabetical order and change pyramid_deform requirement
Fix buttons in nextactivity form
Send the form again after programming a new activity
Provide a _get_form method on BaseFormView

it allows for example to return the form again in a submit_success
method
Fix missing return
Fix icon name
Add compte_tiers to the company model

This commit includes :

* DB Migration script
* Model update
* Company form handling
* Company information display
* Test
Enhance get and query method for the Config obj

Since the config table uses a config_app key that we don't need anymore
(it's historical), we make it transparent
Allow the configuration of the "Compte CG de notes de frais"
code journal and Expense type tva/contribution

Add migration scripts, admin forms, models defs and some tests
Provide total_ht and tva methods on expenselines

Also provide a usefull get_lines_by_type that may be used by the sage
treasury export module
Generate both analytics and general lines + Tests
Add an exported field on the expensesheet model
Fix varnames and attribute access path
Add a usefull function for csv export