install packages via composer, update travis, updates in readme

[harikt]

We will change the shama/aura-system-installer to aura/system-installer or something or something like that and move the https://github.com/shama/aura-system-installer to our own repo.

Thanks to the good work done by @shama to make this happen via the discussions happened at composer/installers#24

Thus we resolve all the Aura.Package related issues .

The current one is for Vendor.Package of others which are aura specific.

This is done as in https://github.com/harikt/Hari.Contact/blob/master/composer.json

{
    "name": "hari/contact",
    "minimum-stability": "dev",
    "type": "aura-package",
    "description": "This is a sample contact page",
    "keywords": [
        "aura",
        "sample"
    ],
    "homepage": "http://harikt.com",
    "time": "2012-07-30",
    "license": "BSD",
    "authors": [
        {
            "name": "Hari.Contact Contributors",
            "homepage": "https://github.com/harikt/Hari.Contact/contributors"
        },
        {
            "name": "Hari KT",
            "email": "kthari85@gmail.com",
            "homepage": "http://harikt.com"
        }
    ],
    "require": {
        "php": ">=5.4.0",
        "composer/installers": "*"
    }
}

That means we make mark "type": "aura-package" . But the only problem there is if that particular package is a library . We may want to find a solution for that ? Will it happen to be a library ? If so we will make it load via vendor folder itself , but the config and stuffs , I am not sure .

But I feel strong that the vendor packages other than Aura vendor which are aura specific will never become a library type .

[harikt]

By the way we have test failures for the Aura.Framework :P . I will look into it when I get sometime.