The REST interface for security domain has been refactored and
configured such that it requires authentication. A CLI has been
added to get an installation token.

Ticket #309

The RPM spec files have been modified to pass the full RPM version
number to CMake. The version number contains the product version
number, release number, milestone, and platform. The CMake scritps
will parse and use this version number to generate Java manifest
files. The product version number will be used as the specification
version and full version number will be used as the implementation
version.

Ticket #339

The CMake scripts have been modified to store the version number
in /usr/share/pki/VERSION and in JAR manifest files. These files
can be read by PKI applications to obtain the version number
without having to query the RPM database.

Fixed warnings in Java.cmake file.

Ticket #339

* TRAC Ticket #333 - Increase audit cert renewal range to 2 years
* Bugzilla Bug #843979 - Increase audit cert renewal range to 2 years

The current ROOT webapp will redirect users coming to the root
URL path to the proper path of the subsystem's webapp.

Since now a single Tomcat instance may have multiple subsystems,
a new ROOT webapp has been added to present the user with a menu
of all available webapps from all subsystems in the instance.

Ticket #89

CMS engine is a singleton and it's used by PKI realm to authenticate
users accessing the subsystem. Since a Tomcat instance may contain
multiple subsystems, each having separate realm, the PKI JAR links
need to be moved into WEB-INF/lib so that they will run inside
separate class loaders.

Tomcat also requires that the authenticator and realm classes be
available in common/lib. To address this a new package pki-tomcat.jar
has been added. The package contains the authenticator and a proxy
realm. When the subsystems start running, they will register their
own realms into the proxy realms such that the authentications will
be forwarded to the appropriate subsystems.

Ticket #89

The pki-client.jar has been split and merged into pki-certsrv.jar
and pki-tools.jar. The REST client classes are now packaged in
com.netscape.certsrv.<component> packages. The REST CLI classes
are now packaged in com.netscape.cmstools.<component> packages.
The "pki" script has been moved into pki-tools RPM package.

Ticket #215

The shutdown() methods in several classes have been fixed to allow
more graceful shutdown and clean restart. There are two types of
object attributes that need to be handled differently.

Attributes that are initialized by the constructor should not be
nulled during shutdown because they won't be reinitialized during
restart. If they require a cleanup (e.g. emptying collections,
closing LDAP connections) it's not necessary to check for null
before calling the cleanup method because they're never null.

For attributes that are initialized during init(), it may not be
necessary to do a cleanup or null the attribute since they might
still be used by other threads and they will be reinitialized
during restart so the old objects will be garbage collected. If
they do need a cleanup they should be checked for null because
they might still be null due to init() failure or initialization
conditionals.

If the attributes are initialized conditionally, the logic has been
modified to ensure the attributes are either initialized or set to
null.

Ticket #247

The common classes used by REST client and services have been moved
into the com.netscape.certsrv.<component> packages.

Ticket #215

The REST client classes have been moved into the
com.netscape.cms.client.<component> packages.

Ticket #215