1.2.0

• Now throwing InvalidUriException if a uri passed to the parse function
  is invalid or could not be parsed.
• #11: Fix support for URIs that start with a triple slash. PHP's parse_uri()
  doesn't support them, so we now have a pure-php fallback in case it fails.
• #9: Fix support for relative URI's that have a non-uri encoded colon : in
  them.