Update version to v0.4.0-alpha
Adding EXEs as valid assemblies.
Updated Autofac/MEF integration to 3.0.1 (resolving issue outlined in #182).
Merge pull request #184 from ianbattersby/IncludeExeAsRefs

Include EXE and lift AutoFac/MEF integration
Made PackageContainer pick the newest supported framework for the packages. Could fix #185
Added filter on .NETFramework
Merge branch 'master' into dev

* master:
  Increment version number to 0.3.1
  Manually specify the dependency version numbers in chocolateyInstall.ps1
NuGet PowerArgs package updated.
Chocolatey install updated to mention new PowerArgs version.
Fixes #189. Merge branch 'issue189' into dev
Merge branch 'dev' into fix-package-references
Merge pull request #192 from denis-mentey/dev

PowerArgs package update
Fixes #193. DirectoryCatalog is not initialized if script name isn't passed.
Merge pull request #194 from denis-mentey/dev

DirectoryCatalog is not initialized if script name isn't passed.
Removed possible NullReferenceException on newestFramework
Merge branch 'dev' into fix-package-references
Added save command to -clean and -install (if no packages.config)
Added assertions on Commands.Count for CompositeCommands, changed to ShouldImplement instead of casting
Merge pull request #199 from khellang/command-chaining

Added save command to -clean and -install (if no packages.config)
Merge branch 'dev' into fix-package-references