Version with separate insertmetns.
Changed formating of wording.
Fixed reversed del/ins.
Added nearly full wording.

Added nearly full version of wording - placeholder_positions are missing.
Changed the title of paper.
Changed the implementation of bind to match the paper.

Do not longer use std::true_type to indicate placeholder.
Change placeholder_positions to parameter_indexes.
Finished first version of wording for grouping placeholders for bind.