lot ofcommmits into one

Script Browser and Script Analyzer Types won't be loaded again at
profile reload
changed "MyDocuments\WindowsPowershell" path detection
minor fixes
added "shell:" function, removed not nedded variables
Some registry related stuff
Find-PackageGUI - For the upcoming WMF 5.0 OneGet feature, hell yee!
Import-Module PSReadline
Test-Ping > Test-xConnection Update-Profile > up
improved Get-WebFile
cleanups
Test-Ping: Improved "Test-Connection" function
Proxy Autodetection