v0.3.0a1

• Added a first draft of the set command
• The winproxy view command was broken if
  • no overrides were set at all
  • less overrides were set, than should be shown at most
• The override list may contain not only ';' separated proxies, but also ','
  separated ones. This may even be mixed. Also, there may be whitespace in the
  Text. This all is now corrected for, i.e., setting override through the
  ProxySettings API will always normalize the string to ';' delimited proxies.
• Missing registry values fall back to sensible defaults