refactor: rename Xbehave.2.Execution to Xbehave.2.Execution.Net45
refactor: change Xbehave.2.csproj to depend on xunit (full)
build: create 2.x package
refactor: switch to wildcards importing files when multi-targetting
green: add ClassFixtureFeature to V2
green: add ClassFixtureFeature to V2
Merge pull request #203 from adamralph/51

create 2.x package and add ClassFixtureFeature