Merge pull request #505 from shaitan/master

Batch of changes
elliptics: Fixed handler::total at several places

Without correct total value checkers behave wrongly
doc: Added documentation about async_result::total
Merge pull request #506 from euroelessar/master

elliptics: Fixed handler::total at several places
Merge pull request #507 from shaitan/master

monitor: added forgotten file.
v2.26.3.15
monitor: removed commands history.