Adding Carbon Alias for easy use.
Revert "Adding Carbon Alias for easy use."

This reverts commit 3a3efdd3e169e748509ebae46e6bafe542052010.
Adding Carbon Alias for easy access.
Changes:
- Fixing category and mood options for select inputs.
- Sending unauthenticated users to activities index if they try to access create view.
- Only allowing authenticated user and the user who created the activity to view edit form.
- On update action: check if an user is changing the image, delete old image.
- On destroy action: delete image.
- Fixed activity date input and handling for saving an activity.
- Associated a saved activity with the user.
Removing Calendar files in preparation for google calendar api.
Removing old/unneeded activity_user migration
Starting to work on user controller:
- adding associated activities to data array for show action.
- preventing access to edit action for other users.
Migrations & Seeder Updates:
- Adding user_id field to activities table.
- Removing timestamps from activity_mood and activity_category tables.
- Faking user_id for Activity Seeder.
- Faking categories on Categories Seeder.
- Faking moods on Moods Seeder.
- Adding Moods and Categories Seeders to DB Seeder.
Updates to Activity Model:
- requiring activity date
- added user() relationship.
- added getter/formatter method for price
Update to User Model:
- Added getter/formatter for first and last name.
Updates to Activities Views:

Create:
- added title tag to title section.

Edit:
- added title tag to title section
- added files = true to form open
- added datetimepicker jquery

Form:
- Added free option to price select.
- Changed datetime input to helper for activity date. made sticky.
- Made category and mood selections sticky.

Index:
- Changed logout anchor to link_to_action helper.

Show:
- fixed sections.
- Displaying activity image only if one exists.
- Displaying price of activity.
yielding title.
Added link for creating a new activity (only if user authenticated).
Beginning work on user show view.
Adding top margin to wells.
Cleaning up mood show view.
Work on Pie Menu:

Index:
- including filter-stack partial for when user clicks on a category/mood/price.
- jquery click events for showing filter bubbles.

Filter-Stack Partial:
- Adding div to hold filter bubbles.

Menu.css:
- initial styles for filter-stack

Main.js:
- changing menus to have "real" categories/moods/prices.