fix crash in date formatting method, new and fixed unit tests.
added date helpers removed from Nunja/Kurt.
debugging problem with multipart form posts
Added method to read a multipart dictionary from posted data.
We could previously do this, but only if the boundary separator
was known. The new method extracts the boundary separator.
added test demonstrating AWS request-signing.
added hmac_sha256 signature generation.
fixed buffer overrun in urlDecode, free buffer when finished.
Added AES encryption methods from Jeff Lamarche.
Merge branch 'master' of firstname.lastname@example.org:timburks/NuHTTPHelpers
added NSDataCategory from CocoaDev
added (NSString +stringWithUnicodeCharacter:)
since GNUstep's stringWithCharacter: doesn't seem to support unicode.
added hex -> data encoder.
fixed base64 decoding problem.
better url encoding of UTF-8 strings
Fixed some linux compilation warnings.