Previously, the default open tab could only be selected by not providing the state query. Add support for selecting the default open tab with an explicit ?state=open query too. Similar to https://github.com/shurcooL/issuesapp/commit/0b82558264994ab993533eed0d2cfe83e145dbe5.
Apply this change to make the change rename event easier to read. Follows https://github.com/shurcooL/issuesapp/commit/a359f164dfa502a21cdc4cc3582a5b4221308d2a.
These events have been superseded by change.Review and its State field, and removed from the change package. Delete support for them. Follows https://dmitri.shuralyov.com/service/change/...$commit/9a7a6e8aef50bf7dceb93c681ed6446f3fdfa0b0.
Improve naming consistency.
Similar to https://github.com/shurcooL/issuesapp/commit/3bc17d8bc061b5a11eb287a91e23ef5dfcc38ea4. Follows https://dmitri.shuralyov.com/service/change/...$commit/5b675ebb0b2bc6dd93ba2cedf6b4c7c9e0271de1 and https://dmitri.shuralyov.com/html/belt/...$commit/f6fb90ff73e49d9904a6a8a5561e437734a2ea57.