Merge pull request #32 from bplunkert/add_pidfile

add pidfile flag to main.go

enable gzip compressed repsonses

fix nil ptr on type assert on unset fileIdx

Use atomic.Value instead of unsafe.Pointer

add raw streaming log output to stdout

main: only close whisper file if there wasn't an error while opening it

tweak logging

README: reflect current state of affairs

main: adjust g2g NewGraphite call to new API

expandGlobs: don't treat directories as leafs, issue #19

add memory stats to graphite

Add Apache-2 licence

add tests for extractTrigrams()

Fix panic on invalid metric glob