Merge pull request #10 from leight/master

Fix setting TLS options
Bumped Amp libs to latest
Added composer.json
Fixed submodule
I hate you, git
Stupid submodules
Adding composer installation method
Merge pull request #11 from Ocramius/patch-1

Adding composer installation method
Fixed comment spelling mistake
Removed superfluous spaces
Updated observables abstraction, added interfaces for Client and AsyncClient classes
Updated examples
Simplified synchronous client interfaces
Updated example
Added CHANGELOG
Removed -dev postfix in user-agent
Merge branch 'master' of github.com:rdlowrey/Artax
Bumped Amp libs to latest
Updated readme with composer install for v0.4.*
Fixed redundant accept-encoding header assignments, added tests