JBIDE-14867 Test failures in WS build on Jenkins
Merge pull request #45 from dgolovin/JBIDE-14867

JBIDE-14867 Test failures in WS build on Jenkins
JBIDE-13985 - Remove "REST" in "JAX-RS REST Web Services"

Done and externalized labels in a message bundle.
[JBIDE-14757] NLS missing message

Remove missing message from JaxrsPreferencesMessages class
JBIDE-14988 - Remove missing/old jars from build configuration
JBIDE-13580 - NPE when duplicating Java Method

Ignore Method bindings if they are null.
Also rework on CollectionUtils to compare maps
When creating JAX-RS Resource, retrieve all Java Method Signatures at once if possible (avoid multiple call to visitor)
JBIDE-14913 - JAX-RS Web Services node is empty after project import or workbench startup

displaying the "Loading..." node when the Metamodel is being built
Using a proper Mutex Rule to avoid multiple concurrent builds
Registering the Metamodel Listener at the right moment and only once, so that changes
can be applied on the UI
JBIDE-14988 - Remove missing/old jars from build configuration

Adding missing entries for jaxb-xxx-2.2.5.1.jar in build.properties
JBIDE-13542 - Disappearance of validation warning

Restored the missing call to the JaxrsMetamodelValidatorDelegate that performs cross-elements validation
Included two JUnit tests
JBIDE-15004 - Fix NPE when running wizards on non-faceted project
Merge pull request #58 from bfitzpat/JBIDE-15004

JBIDE-15004 - Fix NPE when running wizards on non-faceted project
JBIDE-14988 - Force usage of JaxB 2.2 on master
Merge pull request #59 from bfitzpat/JBIDE-14988

JBIDE-14988 - Force usage of JaxB 2.2 on master
remove .project folder in root that prevents easy import in eclipse
JBIDE-12690 No JAX-RS problems when importing a project that contains errors

Preventing some NPE
Taking care of having the metamodel build command inserted *before* the validation command
Keeping the validation context in the JAX-RS Metamodel (via the ValidationContextTree) to hold
the context between validation calls.
JBIDE-15031 - JAX-RS Metamodel builder called too many times during project build

Do not launch a build job when the metamodel already exist and is being initialized.
JBIDE-15051 - Updating parent pom for CR1
Merge pull request #63 from bfitzpat/JBIDE-15051

JBIDE-15051 - Updating parent pom for CR1
JBIDE-15039 - JAX-RS Problem decorator not shown on the Project Explorer node

Adding notification each time a JAX-RS element is validated so that it's UI element gets refreshed
Also 'update' the parent node element to show/hide the problem decorator
JBIDE-15039 - JAX-RS Problem decorator not shown on the Project Explorer node

Main refactoring/changes in this PR consist in:
- compare the problem level of each JAX-RS element before vs after the validation, and
in case of change, notify the metamodel. The metamodel will look for all affected Endpoints and
send 'problem level change' notification to the listeners (here, the UI). In turn, the UI will *update*
the associated node (update -> no refresh for sub nodes) to get a proper image decorator.
- same logix with the metamodel itself, except that the public problem level includes the problem level of the
JAX-RS elements, which means that the 'JAX-RS Web Services' node now reflects the whole Metamodel and thus, displays the
global problem level.
This new UI refresh strategy also reduces the number of times refresh occurred (there's now a single refresh per affected element, even
if this element has multiple problems).

- also fixed a problem where the UI listener would only be registered once the "JAX-RS Web Services" node was expended