Added
- New Chat icon pack and category
- New Charity icon pack and category
- New Moving icon pack and category
- New icons hands and hand-holding
Changed
- Updated flipboard, readme, and houzz brand icon
- Making all solid icons in the medical icon pack free
- Updated hand-holding-box and hand-receiving in the Light style
Signed-off-by: Pierre-Yves <pyu@riseup.net>