Revert "Updated repository urls"

This reverts commit 55aafd18052b35b5f2baf9f6ffe746d5206f5987.

Conflicts:
	spring-android-basic-auth/client/pom.xml
	spring-android-basic-auth/server/pom.xml
	spring-android-news-reader/pom.xml
	spring-android-showcase/client/pom.xml
	spring-android-showcase/server/pom.xml