list adapter modified to use holderView patren

Summary:
copmleted ticket  	50465
partialy complete	50463
task done:
-a new activity opened against the click listener of listView
-code refining for option menu

Test Plan: progress review

Reviewers: zaid.tariq

CC: omair.sajid

Differential Revision: http://phabricator.confiz.com/D1294
pager + action bar + tabs example added , project structure improved