using log4dart from official pub repository
using log4dart from official pub repository

fix upon following question & issue:
-
http://stackoverflow.com/questions/13155384/package-log4dart-is-depended-on-from-both-sources-hosted-and-git

- https://github.com/chrisbu/CrimsonHttp/issues/7

chrisbu/CrimsonHttp,chrisbu/CrimsonHttp