Fix failing test on windows and 'h2gis-dist' execution

[SPalominos]

Module h2gis

• Fix the test DBFEngineTest.readDBFRussianWrongEncodingThenWriteThenRead() which was failing when it is run twice without cleaning the target/ folder
• Fix the test DBFImportExportTest.testWriteDecimal() which was failing under windows because when the whole class is run, the file target/area_export2.dbf stay in use and isn't accessible to this test.

  Module h2gis-dist

• When the h2gis-dist jar is run, in the browser, it was not possible to create a new database like in the h2 jar. The main class in the h2 pom is org.h2.tools.Console instead of org.h2.tools.Server

[ebocher]

Welcome back ! It seems that the changelog must be updated.

[SPalominos]

Changelog updated

[ebocher]

Thanls