Release 1.4.0

16 new icons:

• accessible
• checkbox
• checks
• currency-bitcoin
• currency-pound
• currency-rupee
• currency-yen
• disabled-2
• file-horizontal
• float-center
• float-left
• float-right
• login
• logout
• rotate-2
• rotate-clockwise-2

Fixed icons: check, device-mobile-vibration, file-check, file-download, file-invoice, file-minus, file-music, file-plus, file-text, file-x, file, rotate-clockwise, rotate