[dist] Version bump. 0.3.0
[dist] Version bump. 0.3.0

philip1986/nconf,NickHeiner/nconf,Dependencies/nconf,bryce-gibson/nconf,imjerrybao/nconf,HansHammel/nconf,olalonde/nconf,ChristianMurphy/nconf,indexzero/nconf,remy/nconf