Toggle Construction zones

As the CC,PHI,PMFSHx are being developed I chose to hide these
preliminary fields for now.  As they are developing you can toggle
their visibility but for now they are a distraction to the main
clinical portion of the form.  Perhaps other forms can be incorporated
within openEMR rather than reinvent the wheel?
AutoSave feature

Code change allows autosave and retrieval of prior visit data for
viewing in current visit - custom installs not using /openemr/ as the
install directory will now function by using relative paths.