[boost] [iterator] Merge pull request

Subject: [boost] [iterator] Merge pull request
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2014-08-19 06:33:18

Hi,

Some time ago I made this pull request:

https://github.com/boostorg/iterator/pull/6

It makes some of the implementation details of Boost.Iterator public. These 
components are already used in Boost.Range and Boost.Tokenizer and the intent 
is to further patch these libs to use public interfaces instead of the 
implementation details.

Could this pull request be merged?