Fixed Issue 48:	incorrect return type of GetUint64()
Fixed Issue 48:	incorrect return type of GetUint64()

git-svn-id: 8dac3c830d5316f3c47501008109505fa4759f12@86 c5894555-1306-4e8d-425f-1f6f381ee07c

rjeczalik/rapidjson,rjeczalik/rapidjson,zvelo/rapidjson,zvelo/rapidjson,rjeczalik/rapidjson