Less exceptions, get object key by index.
Re-adding tests since it wasn't present in dev for some reason, fixed whitespace in stings bug, a little more tests. No more exceptions are thrown
Adding .travis.yml
Merge branch 'master' of github.com:sfuller/mjson into dev

"So that's where my unit tests went!"

Conflicts:
	.gitignore
	test/CMakeLists.txt
	test/src/ParserTest.cpp
	test/src/ParserTest.hpp