v3.0.0-rc.0

This is final pre-release version of material-ui-pickers v3. 🔥

This release comes with great refactoring that saved us 1.5kb gzip ⬇️ by grand views refactoring.
Right now all components available to take views and openTo to customize displayed views.

Change log 🎉

• Views refactoring
• [#1033] Properly handle disabled prop
• Memoize picker state props
• [#1033] Properly handle disabled prop
• [#1031] Fix className of ClockNumber selected state (#1045)
• Use react wildcard import rather than default import (#1038)