added a Pester link and how to install to contributing
Added link to the credits.
Merge pull request #327 from alonisser/contributing_guide

Added a Pester link and how to install to contributing
Merge pull request #337 from DanAtkinson/patch-1

Added link to the credits.
add support to install msu.
added changelog
spaces
v0.9.8.21-beta1
fixing duplication in documentation and minor typo
cleaning up the CHANGELOG and Nuspec
updating docs
Remove nuget from the default feeds to increase execution time. This closes #349
capturing parameters to the debug log
Updating some changelog terminology
Fixing error messages...
Spaces removed
Attempting to set packagenames completely empty if not specified
If no package name is specified, just throw and exit
Do not use Invoke-ChocolateyFunction in functions
quoting around messages with package name