[API] Verbose logger concept review.

Now it's not possible to open verbose logger's record without specifying severity level. This is required due to fact, that there is primary filtering, which strongly required severity level provided. Moreover there can be user specific filtering function that be cannot ignore.

This change has broken wrapper's API, which is now splitted into two template specializations: for base logger and for verbose one.
[API] Changed logger creation API.

It's now possible to forward all required arguments to final logger's constructor, while creating it through a repository.
[Examples] Fix build.
[Benchmarking] Fix build.
[GCC 4.4] Satisfying GCC 4.4.
[GCC 4.4] GCC 4.4 cannot properly forward variadic pack.
[Code Style] Tiny reordering.
[GCC 4.4] Typo fix.