Http module's log never clears

[monitz87]

Currently, the http module just pushes each new request into the log with no concern for it's size. Normally it wouldn't be a problem, but if you're performing large numbers of requests this becomes a memory issue. I recommend limiting the log size to the last N entries.

[RafaelVidaurre]

Makes sense, this should be configurable also:

Yakuza.config({
  maxHttpLogEntries: 4
});