Merge pull request #6 from niku/master

don't use --user-install for RVM.
use GET for query submit.
fix HEAD middleware position.
remove needless middleware on development environment..
return 404 for no hit.
fix suggest usage.
add suggest learning data extractor from access log.
re-use POST instead GET.
add a newline.
hide individual data.
add --no-load-data option.
fix time value for suggest.
use threshold 0.
add bitclust path.
add --reset-suggest option.
restart quickly after database removed.
add missing lib/ dir to $LOAD_PATH.
use the current timestamp for sequence.
improve snippet view.
ignore ill format line.