* last_message_time is shown inconsistently for current entry vs other
entries -- deduplicate code
* last_message_time is N/A for undefined -- but the API response was
null instead of undefined.
* first pass at changing the UI color based on state
* adding flag to qmdl metadata for when hueristic is triggered
* update style for web page to match UI and have color alert on heuristic trigger
* add test analyzer
* rename example_analyzer to test_analyzer
* refactor ui update to not depend on server
* refactor to pass around color instead of display state for framebuffer channel
* add debug feature flag for test analyzer
* remove warning status from qmdl manifest
* dont keep has warning around
ND-JSON (newline-delimited JSON) is just a file with a list of JSON
objects separated by newlines. This way, as the analyzer harness
processes new packets, it can simply append JSON-serialized results
to a file without parsing the entire thing first.
Also simplifies the analysis stuff to all operate in the diag thread.
