Make Install Script Build Everything

Updates the install script to get it to build the whole project
rather than just the GUI.

Changes:

 * install.sh
Remove Unused Script

Changes:

 * load_ld.sh: Deleted.
Update User's Guide

Updates the user's guide to reflect the new installation process and
simplification of environment variables.

Changes:

 * docs/PerfTrackUsersGuide2_0-3.doc
 * docs/PerfTrackUsersGuide2_0-3.pdf
Nicer Document Names

Moves the user's guide documents to get rid of some ugliness in the
document names.

Changes:

 * docs/PerfTrackUsersGuide2_0-3.doc -> docs/PerfTrackUsersGuide.doc
 * docs/PerfTrackUsersGuide2_0-3.pdf -> docs/PerfTrackUsersGuide.pdf
Delete Checkpoint Docs

Removes checkpoint documents produced by CS 533 students, since
they're no longer relevant to the current state of the software.

Changes:

 * Checkpoint #1: Deleted.
 * Checkpoint #2: Deleted.
Remove Squashed Bugs from Bug List

Removes entries in PTbugList.txt for GUI bugs that I elimintated.

Changes:

 * PTbugList.txt
Note New Bugs

Adds a new section on installation-related bugs to PTbugList.txt and
notes some limitations of how I've implemented installation.

Changes:

 * PTbugList.txt
Update README

Adds a bit to the README.md file.

Changes:

 * README.md