v0.6.0

Features

• tabs: renamed Tabs to Pivot (b07a2db)
• button: primary button mode (#53) (61957be)
• dialog: default button support (#56) (0036354)
• icon: initial implementation (#63) (14d7c8b)
• listview: basic implementation (#84) (a6d115a)
• navview: initial implementation (#62) (2013d34)