0.4.5

• Fixed bug in integer and float argument conversion specializations where
  invalid conversions were not being correctly handled. Invalid conversions
  (like "garbage" to float) will now throw an exception. Note though if the
  as(default) overload is used (with a default value specified) then all
  exceptions in the conversion result in the default being returned.
• Changed base exception type for argagg exceptions from std::argument_error to
  std::runtime_error
• Now compiles with -Wpedantic