Support war projects using Servlet versions 5 and 6

[nitind]

No description provided.

[nitind]

@fbricon I can't set a Reviewer myself, so I'm not sure what the next step is.

[fbricon]

Change looks fine, but I need to look into the failing build though.

[mickaelistria]

I'm taking care of the build stuff.

[fbricon]

@mickaelistria why isn't the build failing given the plugin version is not bumped in this PR, yet the build is supposedly checking against the baseline:

m2e-wtp/pom.xml

Lines 125 to 141 in b642102

	<plugin>
	<groupId>org.eclipse.tycho.extras</groupId>
	<artifactId>tycho-p2-extras-plugin</artifactId>
	<version>${tycho-version}</version>
	<executions>
	<execution>
	<goals>
	<goal>compare-version-with-baselines</goal>
	</goals>
	<configuration>
	<baselines>
	<baseline>https://download.eclipse.org/m2e-wtp/releases/latest/</baseline>
	</baselines>
	</configuration>
	</execution>
	</executions>
	</plugin>

[mickaelistria]

Version was already bumpled since last release, in 1319d98

[fbricon]

Version was already bumpled since last release, in 1319d98

OK my bad, I was certain 1.5.2 was already released.

[fbricon]

Thanks @nitind

[nitind]

@fbricon When's the next planned release?

[fbricon]

@nitind done. https://download.eclipse.org/technology/m2e/m2e-wtp/releases/1.6.0/
Contributed to simrel