[Code Style] Generic string formatter has been refactored. Objects of this class are now immutable.
Merge pull request #1 from shaitan/master

Submodules: changed https url to git.
[Aux] Files sink no longer creates generic string formatter every consume phase.
[Aux] Determining actual filename in files sink no longer changes its underlying object’s state.
[Code style] Comments style.
Merge branch 'master' of github.com:3Hren/blackhole
[Code Style] Cleaning up code for `vsboost` benchmark.
[Code Style] Performance benchmark: removed unused code.
[Code Style] Performance benchmark: different cases are now triggered by specifying its macro (not ideal, I guess).
[Performance] String formatter performance is increased by 10-15% by using attachable string stream.
[Aux] Synchronizing code with listed changes.
[Code Style] Tiny refactoring over value mappers and extractors.
[Task] One task less.
[API] Repository no longer has `trivial` method. Predefined config now maps to the `root` logger.
[Examples] Synchronizing trivial example.
[Project] Ignore more directories.
[Project] Debianization done.
[Version] Bumped.
Update README.md
Forgotten version bump.
[Examples] More comments. Added example how to use logger without macro.
[Code style] Whitespaces.
[Aux] Dropped default argument for file sink’s consume method, because without proper include (files sink needs own frontend) the code continues to compile, but works incorrectly.
[Unit Testing] Synchronizing tests.
[Examples] Reviewing file example.