make the testsuite report nice for the web

[ct]

The testsuite just emits a simple log for now. I'd like this way but for builddrone it would be nice if the report becomes asciidoced. This can be done by processing the ,testlog with sed/awk or similar.
Normal test lines are just black on white, FAILURES become red, the extra information presented at a failure becomes a literal text block and so on.

[ichthyo]

(In #137) sorry, I disagree. #38 is geared towards a nice "report" on the web (and additionally is worded as just covering the testsuite), whereas this ticket is meant as an immediate fix for the existing plain-text errorlog. For me, #38 seems to be about creating something new and might require a bit more of additional work, while this here is a simple improvement to the status quo.

I think it's just fine that all of the output of the build and test running steps goes as-is into a plaintext log. Just working with this log as it is today can be a pain; but adding some "echo" statements at the right places will easily resolve this situation. My guess would be, that someone familiar with builddrone might actually resolve this ticket in half an hour. (I'd certainly do it myself, just I don't know right now where to look and how to change things...)

[ct]

builddrone v2 will take care for this as it supports filters/formatters for logged output