The Arquillian configuration for MySQL tests was wrong, as it was
using the H2 data type factory instead of MySQL's. This commit fixes
this error and now tests with MySQL should work fine.

The project dependencies have been updated, including a change from
WildFly 8.2.1 to 10.1.0. This change affects the project configuration
in several ways, specially in tests configuration.

The README.md file has been updated to reflect the configuration
changes.

The previous Maven configuration included a WildFly Maven plugin
configuration in the H2 and MySQL profiles that allowed the application
execution directly from Maven (with the mvn wildfly:start wildfly:deploy
command). As this configuration included a custom WildFly deployment
configuration (that modified the standalone.xml of the WildFly where the
application will be deployed), the mvn wildfly:deploy couldn't be used
to deploy the application in a local WildFly instance.

This commit adds a new profile (wildfly-mysql-run) that can be used to
execute the application directly from Maven (with the mvn install
command). The custom WildFly plugin configuration has been removed from
the other profiles, allowing users to normally deploy the application in
a running WildFly instances.

Instructions on how to use the profiles for application execution and
deployment can be found in the README.md file.

The project configuration has been simplified by unifying some part of
the mysql and h2 configurations.

In addition, the project has been configured to allow the execution of
the application with the Maven WildFly plugin.

The README.md has been update to reference the new course and the new
Eclipse version. In addition, the general pom.xml file has been updated
to include the newer versions of the dependencies, and the ear/pom.xml
has been modified to include more project information in the generated
EAR.

On the other hand, the testing mysql-ds.xml have been removed and the
standalone.xml testing files have been updated to include the datasource
data.

This commit adds the OwnerService and PetService EJBs to the
implementation. This commit also includes the tests for this EJBs with
two different Wildfly profiles: a H2 profile and a MySQL profile.