Added code to make all the screens secure#579

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ranjeetDT wants to merge 2 commits intoklausw:masterfrom

datatheorem:master

Commits on Jun 1, 2017

Added code to make all the screens secure
ranjeetDT
committed

Commits on Jul 25, 2017

Made setFlagSecure method optional. If the developer wants to use it in any of the Activities,
ranjeetDT
committed