See [Font Awsome 4] in Licenses/ICONS.md for:
- history-solid.svg based on Font Awsome's history-solid.svg 
- list-solid.svg based on Font Awsome's list-solid.svg
- star-solid.svg based on Font Awsome's star-solid.svg
- favorite_add.svg based on Font Awsome's star-solid.svg
- favorite_remove.svg based on Font Awsome's star-solid.svg
- hourglass-half-solid.svg based on Font Awsome's hourglass-half-solid.svg
- times.svg
