Changing "cant find meta directory" log to info

I see this message a lot when shifter runs but I think it should be a warning. Is there an issue if there is no meta directory found? I'd prefer to keep that under the "quiet" flag, since silent shows warn and errors.
improving error report after PR #115. this adds support for queued and stacked errors.
dropping node 0.8 from travis build, adding 0.11
missing ;
improving error detection for css modules
errors building the skin should not be propagated, only reported, to avoid breaking the build.
adjusting unit tests, fixing bug when compiling prebuild
removing console.log
upgrading yui-lint to reduce the size of the tarball
Merge branch 'patch-1' of https://github.com/redonkulus/shifter