Steel 0.8.0

### Events

- [x] Events can belong to a "calendar" (closes #25 )

### Flint

- [x] Add function `steel_open`

### Options

- [x] Add control panel with functionality like Jetpack, but only basic formatting (close #71 )
- [x] Fix admin menu image from squishing
- [x] Remove redundant options page

### Quotes

- [x] Remove quotes custom post type (close #80 )
- [x] Remove shortcode until can figure out correct placement

### Templates

- [x] Add templates module
- [x] Create `single-steel_profile.php`
- [x] Create `type-steel_profile.php`
- [x] Create `taxonomy-steel_team.php`

### Widgets

- [x] Prefix all widget names with "Steel:" (close #83 )

### Misc

- [x] Replace `ereg` with `preg_match`
- [x] Remove `@since`
- [x] Update to Bootstrap 3