Fixed an error in analyse_digest_last_page/6.
Fixed wrong border calculation (should we include a message, if microseconds(MessID) == Start).
Tested index_upper_bounded_last_page.
Fixed key filter in bounded_first_page.
Fixed zero-based index when one-based is expected.
Fixed usage of bounded_middle_page, when bounded_last_page should be.
Deleted dead code from statem3. Created statem4 (for testing of purging multiple messages).
Fixed typo save => safe. Do not let generators to fail.
Added first tests for multiple message purging.
Improved the riakc's mock.
Fixed purging entries from a digest when lower or upper bound is undefined.
Fixed a bug in dig_subtract/2.