Render customized list item

[lauriskuznecovs]

Currently it is possible to use itemRender to customize child markup for <li>, but for accessiblity its is not enough.
At least there would be need to customize title attribute for list item, which currently is page number.

[lauriskuznecovs]

I have made fix for this, but I cannot push feature branch.

ERROR: Permission to react-component/pagination.git denied to lauriskuznecovs.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

[lauriskuznecovs]

PR opened: #207