linter 0.1.59
linter 0.1.59


* relaxed `void_checks` (allowing `T Function()` to be assigned to `void Function()`)
* test and build improvements
* introduced Effective Dart rule set
* Google ruleset updates
* (internal cleanup): move cli main into `lib/`
* fixed false positives in `lines_longer_than_80_chars`
* new lint: `prefer_void_to_null`

Change-Id: I374197f09701041fd0b507062a3ad903f731656a
Reviewed-on: https://dart-review.googlesource.com/69382
Reviewed-by: Brian Wilkerson <1f7641b6b14c52b9163524ab8d9aabff80176f21@google.com>
Commit-Queue: Phil Quitslund <3faecbdd7b7be83f493f037bf1d597e6bb9d0848@google.com>

dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk