- Artifact name and module name is `webapp`.
- Artifact `finalName` is `mrl-webapp`.

- Add to DatasetFactory a method to get MKT metrics from the database (workaround due to lack of MKT metrics in `Metric` table.
- Add a new constructor to `Metric` class to support lack of threshold for MKT metrics.
- Add controller, service interface and service implementation to provide dendrogram.

Should allow to have only code related to display in XWiki page and all preprocessing done in the web app.

- No longer get JDBC driver using `Class.forName`.
- Remove System.out and System.err and replace them with call to SLF4J for logging and logback has a backend with currently only a development debug configuration that log to STDOUT.
- Use MariaDB JDBC driver.
- Make code tolerant to database connection issue (log error in log and display error message to user).
- Get d3.js using HTTPS (avoid a redirection).
- Set default project using the first one in project list rather than hardcoded ASM.
-  Use Servlet version 3.1.0 instead of 4.0.1 as we target Jetty 9.4 that only support servlet 3.1.0.

Parent pom is used to centralized the specification of plugin versions to use (in order to get reproducible build) and also dependencies version (to use same version across all modules of the project).

Add JUnit 5 to use latest version of JUnit as project have currently no tests.