[untracked] fixed occasional audio dropping
[untracked] code cleanup
[untracked] decreased tolerable audio drift
ref #1671 [changed playback queue for using raw pointers]
ref #1671 [turned off FEC for audio permanently, buffer logs]
'issues/1671-segmentation-fault' -> 'dev'
ref #1701 [added external renderer interface]
ref #1701 [fixed external renderer interface]

- implemented publishing with rendering into external renderer
ref #1671 [fixed Consistency enum values]

- Inconsistent equals 0 restrain Comparator from correct mask checks
(i.e. checking inconsistency like that "mask & Inconsistent" will
always return false - that's why comparator failed to preserve strict
weak ordering)
'issues/1671-segmentation-fault' -> 'dev'
'dev' -> 'issues/1701-browser-api'
ref #1701 [trying out new fixes to the library interface]
ref #1701 [added build version and external renderer check]
ref #1671 [final fixes for SEGFAULT bug]

- removed excessive logging
- buffers will be dumped only if log level is set to "all"
[untracked] fixed crash after stopping fetching
[untracked] added windows control logic

- now windows can be brought to front and arranged on the screen from
within the demo application
updated library interface description
ref #1701 [updated library interface for fetching with external renderers]
'issues/1701-browser-api' -> 'dev'
'dev'->'master'