Added the header and footer files. Also incorporated them in all the views that
are called.
[added] The footer view in all the places where the view is called.

[removed] [minor] Unnecessary echo message echoing the query that is sent from the
database display module.
[minor] Removed the home link in the header. The home link should redirect to the summary page.

having two links for the summary page wouldn't be wise.
[minor] [addition] Added the home link which also redirects to the summary page.

Although this is not elegant, there must be a home tab where users can return
to from time to time. Will change the view of the home tab, in the coming future.
Merge pull request #9 from icyflame/navigation-bar

Added a header and a footer across all views