v2.0.0 - move to `FlatList` and `SectionList`

• FlatList and SectionList are used now 🎉
• Breaking renderSectionHeader now works as in SectionList, you need to update this or your section titles will disappear
• Deprecation sectioned grid will no longer support data as an object in the future, new format is [{title, data:[]}, ...]
• Deprecation itemsPerRow is now deprecated in favor of numColumns
• keyExtractor prop is needed now
• itemHasChanged prop is no longer needed

Important commits:

• Fix prepareData e008769
• Fix linting issue a75942c
• Update README.md 568f70a
• Add example to the repo 58aeb90
• Move to FlatList and SectionList dda8bbc
• Fix eslint-plugin-react warning 5b87e8e
• Add node 10 to travis 43fa227
• Update husky hooks 91b26de

v1.1.0...v2.0.0