v3.0.0-beta.0

Notable changes

• Simpler module system using ES2015 Map (e276678).
• Thunks support as in snabbdom 0.5.x (96727c6).
• Bug fixes: corrected some wrong behaviours that would differ from snabbdom's (e01015a, 245e141, 611ea82)
• Better testing (Travis integration) (c4662d2).
• Module loading related problems should be fixed.