Changes in all

Modified gson 2.1 - 2.4 ,
also added shop user administrations
added shop session
Merge branch 'master' of https://github.com/srpkrishna/Shoplite

Conflicts:
	ServiceTester/.classpath
	ServiceTester/appClientModule/Main.java

ServiceTester/appClientModule/com/shoplite/hub/test/RegisterUserTest.jav
a
	ServiceTester/build/classes/Main.class
	ServiceTester/build/classes/com/shoplite/hub/test/AddUserTest.class
	ServiceTester/build/classes/com/shoplite/hub/test/GetShopTest.class
	ServiceTester/build/classes/com/shoplite/hub/test/LoginTest.class

ServiceTester/build/classes/com/shoplite/hub/test/RegisterUserTest.class