Fixed #116: Bootstrap artefacts added to the project. Additional small fixes.
Issue #117: classes from the ejb module merged with classes from the web module.
Issue #117: ear and ejb modules removed. Files from the war module moved to the root.
Fixed #117: Context root reestablished to /ug.
Issue #118: Navigation bar, footer, login box and highlight box.
Issue #118: Showing events and news in a maximum of 3 columns.
Issue #118: Improving presentation of events, posts, with spacing, color and layout adjusts.
Issue #118: Migrated knowledge/websites and registration form to bootstrap.
Fixed #94: A published post can be edited now.
Issue #118: fixes in the home page.
Issue #119: Listing all possible tracking available when creating a session.
Issue #119: Edition of tracks.
Removing submodule "docs".
Fixed #120
Fixed #122: The abstract class AbstractBean was added and several EJBs are extending from it to reuse its methods.
Issue #122:  Declaring the method getEntityManager() as final was blocking the deployment of the application.
Issue #123: made the field "member" mandatory.
Issue #62: Added the interface Serializable to SessionScoped and ViewScoped classes. Downgraded xml descriptors in the page layout.xhtml.
Issue #123: Fixed errors while creating a session of an event.
Issue #118: More three pages migrated to Bootstrap.