Added Robocopy completer
updated tabexpansio
Merge pull request #22 from dfinke/master

Updated Tabexpansion for Robocopy
Moving Get-RoboCopyArguments to an inner function

When running the completer for robocopy, $error fills up with messages
about not finding Get-RoboCopyArguments.
This seems to fix it
Update ArgumentCompleterFunction.snippets.ps1xml

Fixing spelling error
Making new-completionresult accept more than one item from the pipeline
Merge pull request #23 from powercode/master

Moving Get-RoboCopyArguments to an inner function
Add Position=2 to $ToolTip
Adding workaround to TabExpansion2 for completion of native options

For some reason, PowerShell does not call the registered completer for
native commands if the word to complete is - or --.
Reworking completer to use the ast extend to find the right thing to complete
TryNativeCommandOptionCompletion should only look for StringConstant options
Using only the filename without extension for native command lookup
Cleaner loging in ast find predicate in TryNativeCommandOptionCompletion
Merge pull request #25 from powercode/NatOptBugFix

Adding workaround to TabExpansion2 for completion of native options
Added few minor tab expansions