add http_post update function to payload_telemetry
use transmit_time for time_created if available
update copyright year
commit WIP
Fix issue #302 - _validate_formats stopping early
Fix #299 by demoting filter errors to 'debug'

Also log more about where a failling filter came from
Log error type name too
Test #299 fix
Remove inert test

This test wasn't doing anything: _filter would error since it's looking
for f['filter'], not f['callable'], rather than the thing we were
testing for.

Incidentally, this test would fail if it worked: does LoadableManager
need modifying?
Refactor exception type logging
If filter errors are all caught by _filter, needn't catch them here too
Add test for _get_config calling _find_config_doc
Add logging to _get_config
Require most strings be nonempty
add _fallbacks to payload_telemetry schema
new http_post update func
update parser to use fallbacks
have http_post update func also copy transmit_time to fallbacks.time for rockblock
add simple binary parser module
add stdtelem.binary_timestamp