updates: layouts, grunt, dependencies

- renamed `_layouts/default.html` to `_layouts/dashboard.html`
- added grunt task to watchless files and automatically compile em on save
- added bootstrap and jquery as package dependencies
- upgraded from bootstrap 3.2 to 3.3
updates: layouts, grunt, dependencies

- renamed `_layouts/default.html` to `_layouts/dashboard.html`
- added grunt task to watchless files and automatically compile em on save
- added bootstrap and jquery as package dependencies
- upgraded from bootstrap 3.2 to 3.3