[zanata/zanata-server] a25e58: fix(ZNTA-537): bring back session expired page

[GitHub]

  Branch: refs/heads/ZNTA-537_view_expired_exceptions
  Home:   https://github.com/zanata/zanata-server
  Commit: a25e58caf916b090425777e06776fe37fef2d6be
      https://github.com/zanata/zanata-server/commit/a25e58caf916b090425777e06776fe37fef2d6be
  Author: Carlos A. Munoz <camunoz at redhat.com>
  Date:   2016-02-03 (Wed, 03 Feb 2016)

  Changed paths:
    R zanata-war/src/main/java/org/zanata/exception/AjaxViewExpiredExceptionHandler.java
    R zanata-war/src/main/java/org/zanata/exception/AjaxViewExpiredExceptionHandlerFactory.java
    M zanata-war/src/main/java/org/zanata/exception/handler/ViewExpiredExceptionHandler.java
    M zanata-war/src/main/java/org/zanata/util/UrlUtil.java
    M zanata-war/src/main/webapp/WEB-INF/faces-config.xml
    M zanata-war/src/main/webapp/WEB-INF/urlrewrite.xml

  Log Message:
  -----------
  fix(ZNTA-537): bring back session expired page

This page had been lost as part of the CDI migration.
Bringing it back as well as removing unnecessary JSF artifacts as
DeltaSpike handlers cover both ajax and non-ajax scenarios.