v0.3.0

• Address type errors (#4) aa4a3d0
• Drop vendored PR use beta (#3) 03b653d
• Adopt builtin components (#1) ea75628
• Bump timeout to 15m 5fb8a16
• Merge pull request #2 from emberjs/mixonic/ci-with-vendored-pr 7fa4db7
• Add vendored PR of Ember, add to CI 2547093
• Drop lint 1c31299
• More CI setup a5e3882
• Drop travis 9029940
• Create main.yml 2919143