UP-4066
Manage Portlets: Group and category selection use permissions to get forest root

This change provides several necessary fixes for delegated portlet administration.
First, it updaes the 'Select Categories' and 'Select Groups' steps by filtering
the available choices based on the user's permissions.  (In the past, Portlet
Administration users were almost always superusers.)  Secondly -- and also in
furtherance of delegated portlet admin -- this change includes several additional
permissions checks during and at the end of the Portlet Manager publishing wizard.
These check are aimed at preventing a Portlet Manager user who is a non-superuser
from stepping outside the bounds of granted authority.
UP-4054:  obtain local account by username rather than id
UP-4106 Enforce CONFIG permission.

Addresses CVE-2014-3417 .
UP-4113 : update issue tracker URL in quickstart readme.
UP-4114: Update uPortal website URL.
UP-4115 Fix typos in docs.
UP-4116 Remove reference to -dev quickstart.

No longer distributing -dev quickstarts since no longer using SVN.
UP-4117 Correct documentation of uPortal log filename.
UP-4118 Add instruction on submitting security defect reports.
UP-4119 Note bugs-affecting-version search is on release wiki page.
Add Jasig license header to AuthorizationPrincipalHelper.java
NOJIRA - SpEL contextPath for Background Preferences

Adding automatic contextpath translation using SpEL to avoid to define a
static contextpath in background portlet preferences.