[bs-96] Switch off m2e errors about /eclipse path

* Uploaded m2e eclipse baggage to http://static.springsource.org
* Changed location in parent pom
* Removed all main.basedir properties from poms

[Fixes #49285987]

spring-bootstrap-samples/pom.xml

@@ -9,9 +9,6 @@
 	</parent>
 	<artifactId>spring-bootstrap-samples</artifactId>
 	<packaging>pom</packaging>
-	<properties>
-		<main.basedir>${project.basedir}/..</main.basedir>
-	</properties>
 	<modules>
 		<module>spring-bootstrap-sample</module>
 		<module>spring-bootstrap-data-sample</module>