Update readme documents

I updated our readme documents to reflect our projects structure and
function. I wrote them in such a way as to make it easy for future
developers to get an idea of how our project is set up and how the
multiple pieces interact.
Update readme style 1

Added subheaders and bulleted file names, also made each folder item a new
paragraph.
Update readme style 2

Added newlines and fixed points for files.
Update readme style 3

Updated the main readme to include info about file structure.
Update readme style 4

Updated the main readme with file structure and added a readme to the
phonegap folder to explain how we instantiated our splash screen.
Edit README files for clarity

This commit contains several minor edits to the project's README files:

-Main project README has been updated with contribution notes and
 contributors.

-app/store/Readme.md has been edited for word choice. Notices
 regarding the current state of the project have been elevated.

-app/view/Readme.md has been edited for clarity regarding content that
 is referenced between views.
Merge pull request #1 from osu-cass/feat_3780_README_round1_edit

Edits look good.
Merge pull request #15 from Free-BSG/feature-3780_README

Feature 3780 readme

Looks good. These will be subject to a substantial amount of revision as the project continues. Especially once we merge the doctree.