Modify Project Initialization.tex

Some small changes to initialization document. This commit is primarily
a demo to set up a feature branch. We should push changes to the TeX
document to this branch, and we'll merge it into master once it's ready
Adjust folder structure and add use-case diagrams

Move project init doc to docs folder.
Add basic use-case diagram
Add Description and modify Assumptions

Describe the project goals in more detail. Add one sentence to
assumptions
Adjust use-case diagrams

"Show subscribed feeds" was cut off in use-case diagrams.
Adjust ellipses to accommodate text. Recompile document to update
PDF
Rewrote the introduction

Also made some small edits to the requirements and deliverables
sections.
Fixed section numbering
Cleaned up the Description section
Cleaned up the Requirements section
Cleaned up the first semester plan
Changed project initialization form due date
Added team number, class date, and time to title page
Fixed some of the section and subsection titles
Added a Conclusion
Adjust first-semester milestones

Change dates in schedule table
Various changes

Adjust requirements to add periods
Adjust images (centered)
Adjust table 1 name
Refined the role of the extensibility API in the Description.
Sent document to project sponsors for approval
Merge pull request #1 from dhganey/project-init-doc

Complete project initialization document feature