Update changelog for 2.1.0 release
Update changelog for 2.1.0 release

jaxxstorm/puppet-consul,jaxxstorm/puppet-consul,Tradeshift/puppet-consul,researchgate/puppet-consul,researchgate/puppet-consul,Tradeshift/puppet-consul,jaxxstorm/puppet-consul,solarkennedy/puppet-consul,Tradeshift/puppet-consul,researchgate/puppet-consul,solarkennedy/puppet-consul,solarkennedy/puppet-consul