PSGetUnicodeString was same as PSGetWideString. Removed undesirable typecast to WideString. Runtime is much faster now!
- GetUnicodeString was same as GetWideString before. Improved to faster default conversions.
- Corrected result of 'plus' string operation to UnicodeString.
Merge pull request #66 from geby/master

Removed undesirable typecast to WideString