1.2.0

For ease of embedded use, the decoder and the SAX parser are made self-contained one file implementation.
1 is decoded as an integer on Lua 5.3.
Number parsing routine is changed. Now -?[0-9][-+.A-Za-z0-9]* is detected as a number, and its conformance to JSON spec is checked.
Automated testing.
Cool logo :)
Bug fixes.