[TIMOB-16659] Manifest.json should contain list of all SHAs of included projects

The current manifest.json includes the SHA of just the last github commit However, that's not really true. It's also the sum of the github commits for: https://github.com/appcelerator/titanium_mobile_blackberry https://github.com/appcelerator/titanium_mobile_tizen https://github.com/appcelerator-modules/ti.map https://github.com/appcelerator-modules/ti.facebook https://github.com/appcelerator-modules/ti.cloud https://github.com/appcelerator-modules/cloudpush https://github.com/appcelerator/titanium_modules/tree/master/urlSession That should somehow be reflected here:

{
	"version": "3.2.3",
	"moduleAPIVersion": "2",
	"timestamp": "03/19/14 17:41",
	"githash": "75bde16",
	"platforms": ["iphone", "tizen", "mobileweb", "android", "blackberry"]
}

So the display on builds.appcelerator.com can be more accurate.