Models, some client ui's, some func. def.s changed
Changes list:

- Models updated.(Check server/models/models.js)
- Phone database tables have changed.(Check openDatabaseConnection()
	function of the client)
- Now, replies are sent with the forward count of the request; so, we
	can keep track of how many times the request is forwarded before the
	reply.
- Request page ui is now compatible with the spec.
- Response page ui is now compatible with the spec.
- Server is compatible with the new client updates.

NOTE: More testing may be needed.(With at least two devices if possible.)
Social share support added, working tree cleaned.
Changes:
- Social share support added.

If you click on the "Share the app" button on the HomePage, it takes you
to the share page. On the share page, you can click on images, and a
customizable message can be shared on Facebook, Twitter, Whatsapp or
with e-mail. (Check SocialSharing Plugin info page for additional social
media options.)

- Working tree cleaned.(Some unused files are deleted.) Some images
	added for social sharing.
- README.md updated according to the latest function definitons, and
	some used library informations added.
Merge pull request #20 from eozturk1/master

Social share support added, forward request functionality improved.