Added get current logged in user function to forcetk.js.
Merge branch 'master' into branch-lingjun

Conflicts:
	js/app.js
A lot of coding for home page.
Merge branch 'master' into branch-lingjun

Conflicts:
	index.html
	js/app.js
Introduce model pattern.

Conflicts:
	js/app.js
Separate model and view for home page.
Merge branch 'master' into branch-lingjun

Conflicts:
	index.html
	js/app.js
Some improvements
Merge branch 'master' of https://github.com/haobo/ITBmobile