RateLimiter + Leaky Bucket

Merge pull request #4 from un000/rate-limiter-and-leaky-bucket

Rate limiter and leaky bucket

Buffered line begin finder

Merge pull request #3 from un000/buffered-line-begin-seeker

Buffered line begin seeker

Refactoring, tests

v0.1.3

Refactoring

Fix find first symbol of a line behavior

v0.1.2

Fix finding first symbol of a line

Change Channel API

Allows better extensibility for the future.

BREAKING CHANGE:

• .Run() no more returns channels, use .Lines() and .Errors() instead.

Initial

v0.1.0

Add more errors handling