Add a field for the reason why to achive this goal

Signed-off-by: Prashant Shah <prashah360@gmail.com>
Use the model name in the sql where clause

Signed-off-by: Prashant Shah <prashah360@gmail.com>
Load the categories from the association

Used to populate the selectbox in the view

Signed-off-by: Prashant Shah <prashah360@gmail.com>
Link the category and user models to the goal model

Also remove the need to hardcode the category_id

Signed-off-by: Prashant Shah <prashah360@gmail.com>
Add the option to select the goal category in the view

Signed-off-by: Prashant Shah <prashah360@gmail.com>