List generator is used instead of for_loop.
 Catching specific exception (suppress pylint warning).
 Simplify instance checking of the value.
Merge pull request #196 from gmist/minor_changes_simplifications

Minor changes and simplifications
Bumped pre-release 1.0.11 version
Added Yandex.Metrika web analytics (http://metrica.yandex.com).
Fix Yandex Metrika field generation and added help-block.