Merge pull request #9 from xzero/master

Update
quick-fix signedness
x0d: added --info (-V) cmdline arg to print some compile-time infos
dead code cleanup
Merge pull request #10 from xzero/master

Update
FastCGI: Fixed void CgiTransport::unref(): Assertion `refCount_ > 0' failed.
Merge pull request #43 from matelife/master

"FastCGI: Fixed void CgiTransport::unref(): Assertion `refCount_ > 0' failed."

p.s.: TODO: fix the real cause of refCount>=0 assertion.
README update
Merge branch 'master' of github.com:xzero/x0
autogen.sh update
[base] LogMessage: new class for taggable log-message objects.

Of course, the prior way worked out, too, but had a way too high number
of internal malloc()'s. So the initial purpose of this new API is speed
improvements, and OTOH it will look a bit more cleaner now aswell.
make use of new LogMessage API
x0d: added --log-target=T for different log targets, including (colored) console.
ChangeLog update
TODO update
[http] core API: added log.notice() and log.warn() flow functions
x0d --log-level= to --log-severity= and inverted severity values to match their meaning.

This greatly helps reading the code as a high integer values mean high severity values.
proper implementation of log-rotation via SIGUSR1
[plugins] cgi: minor plugin loading fix
[x0d] also print plugin directory to -V output