Added bem-tools example to docs
Added bem-tools example to docs

Closes gh-12

Squashed commit of the following:

commit 069fef5ac016d7160b68478099f967afc7ce3eac
Author: Yuriy Remnev <yura_remnev@mail.ru>
Date:   Sat Apr 11 13:37:48 2015 +0300

    Add bem project stub example

commit d58dbe71ba7b31f297c78c97001fd215958bb02e
Author: Yuriy Remnev <yura_remnev@mail.ru>
Date:   Fri Apr 10 19:27:25 2015 +0300

    Added bem-tools example

    Fixes gh-6

bem-incubator/stat-counters,remnev/stat-counters,bem-incubator/stat-counters,remnev/stat-counters,bem-contrib/stat-counters,bem-contrib/stat-counters