Merge pull request PowerShell#485 from PowerShell/development

Take Development to Master for v1.5.0 release

Merge pull request PowerShell#452 from PowerShell/development

Take Development to Master for v1.4.0 release

Merge pull request PowerShell#430 from PowerShell/development

Update CHANGELOG.MD

Merge pull request PowerShell#407 from PowerShell/development

Merge Branches

Merge pull request PowerShell#345 from PowerShell/development

Merge ChangeLog

Merge pull request PowerShell#304 from PowerShell/BugFixes

Bug fixes to Master

Merge pull request PowerShell#252 from PowerShell/BugFixes

Merge BugFixes to Master

Merge pull request PowerShell#144 from PowerShell/gitignore

Add .gitignore file