Replace bootstrap static files by gem.
Provide a page_title utility for the css.
Add title variable for page.
Create a partial for flash messages.
Create a partial for form errors.
Correct edition link and add some tests for this.
Perfect will_paginage display.
Merge branch 'topic/reworkDesign' into develop

* topic/reworkDesign:
  Perfect will_paginage display.
  Correct edition link and add some tests for this.
  Create a partial for form errors.
  Create a partial for flash messages.
  Add title variable for page.
  Provide a page_title utility for the css.
  Replace bootstrap static files by gem.
Create the method until on Transaction.
Add a parameter on Compte.solde to set a until date.
Improve configuration of rspec.
Develop interactive solde UI.
Merge branch 'topic/createTimeLimitOnCompte' into develop

* topic/createTimeLimitOnCompte:
  Develop interactive solde UI.
  Improve configuration of rspec.
  Add a parameter on Compte.solde to set a until date.
  Create the method until on Transaction.
Update test on transaction.
Add categories after creation.
Refactor tests, model and controller for transaction.
Test that categories are added on creation.
Change categories.
Merge branch 'topic/finalizeCategories' into develop

* topic/finalizeCategories:
  Change categories.
  Test that categories are added on creation.
  Refactor tests, model and controller for transaction.
  Add categories after creation.
  Update test on transaction.
Complete tests on comptes helper.