Add @path to #main action of home controller.
Add @goal and @path vars to #start action of paths controller.
Add belongs_to Path association in Goal model.
Add select dropdown to home/main.html.erb for choosing a goal.
Add skeleton content in paths/start.html.erb.
Add belongs_to :path FK in create_goals migration.
Migration change to schema.
Add Path model with has_one association to Goal.
Add create_paths table migration.
Add empty path model spec file.
Merge pull request #3 from Cfeusier/CF_general_flow

Cf general flow. YOLO MERGE.