Integration tests requires MySQL installed

[seralf]

Hi have some errors in the test phase launching build on windows: looking at the full stack trace (here I tried to copy only some snippet from the relevant parts) it seems that the tests actually needs a working mysql instance to be run.
I'd suggest to add this information in the documentation in the installation phase (a typical maven user would easily start with $ mvn install -Dmaven.test.ski=true, at least).
Ideally I would move the integration tests part to a pure java jdbc driver , such as some implementation of sqlite, just to simplifying setup for someone who only needs to reproduce the jar locally. What do you think about?

Here some code:

Running de.fuberlin.wiwiss.d2rq.d2rq_sdb.SdbSqlEqualityTest
Loading Data from 01ProductFeature.sql
java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: productfeature
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.JDBCStatement.fetchResult(Unknown Source)
        at org.hsqldb.jdbc.JDBCStatement.execute(Unknown Source)
...
Caused by: org.hsqldb.HsqlException: user lacks privilege or object not found: productfeature
        at org.hsqldb.error.Error.error(Unknown Source)
        at org.hsqldb.error.Error.error(Unknown Source)
...
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.265 sec <<< FAILURE!
warning(junit.framework.TestSuite$1)  Time elapsed: 0 sec  <<< FAILURE!
junit.framework.AssertionFailedError: Exception in constructor: testSdbSqlEquality (junit.framework.AssertionFailedError
        at junit.framework.Assert.fail(Assert.java:48)
        at junit.framework.Assert.fail(Assert.java:56)
        at de.fuberlin.wiwiss.d2rq.d2rq_sdb.LoadDataTest.initDatabases(LoadDataTest.java:95)
        at de.fuberlin.wiwiss.d2rq.d2rq_sdb.LoadDataTest.<init>(LoadDataTest.java:65)
        at de.fuberlin.wiwiss.d2rq.d2rq_sdb.SdbSqlEqualityTest.<init>(SdbSqlEqualityTest.java:52)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
...
Running de.fuberlin.wiwiss.d2rq.DBConnectionTest
Tests run: 4, Failures: 0, Errors: 4, Skipped: 0, Time elapsed: 29.02 sec <<< FAILURE!
testLongComplexSQLQuery(de.fuberlin.wiwiss.d2rq.DBConnectionTest)  Time elapsed: 7.609 sec  <<< ERROR!
de.fuberlin.wiwiss.d2rq.D2RQException: Database connection to jdbc:mysql://127.0.0.1/iswc?autoReconnect=true failed (user: root): Could not create connection to database server. Attempted reconnect 3 times. Giving up. (E54)