1.7.0

• fix 'rem' support
• support for the dimensions 'ch', 'vw', 'vh', 'vmin' and 'vmax' added
• minus sign no longer supported inside unknown dimensions. This fixes a problem when parsing calc terms without whitespace around the minus like in calc(42vh-16.4em)

1.6.0

• support calc()
• support var()

Thanks to Christian Morgner.

1.5.0

• improved resource handling

1.4.0

• cleanup and minor fixes

1.3.0

• add support for 'rem' unit
• get rid of all the w3c dependencies
• simplification/modernization

1.2.0

• code cleanup and simplification

1.1.0

prepare version 1.1.0

1.0.0

next try version 1.0.0