repo-reorg-2020: moved sts4-relevant spring-ide bundles from https://github.com/spring-projects/spring-ide/releases/tag/REPO-REORG-2020 into sts4 repo

eclipse-extensions/org.springframework.ide.eclipse.docker.client/readme.md

@@ -0,0 +1,31 @@
+Alternate Docker Client
+=====================
+
+Repackaged as a single osgi bundle with all its dependencies.
+
+Source: https://github.com/docker-java/docker-java/blob/master/docs/transports.md
+
+Using the 'zero-dep' client in the hopes it poses the fewest complications / dependency messes.
+
+Packaging Process:
+==================
+
+- Build the maven project `docker-client-wrapper` which is included as a sub-folder in this project.
+- copy all the jars from `docker-client-wrapper/target/dependency` to `dependency`.
+- Open `manifest.mf` with PDE tabbed editor. Select the 'Runtime' tab and then:
+   - clear out exported packages section then add all com.spotify.docker.client* packages back
+   - clear our 'classpath' section and all jars in the 'dependency folder.
+
+
+IMPORTANT:
+   
+The following dependencies must not be consumed from wrapped jars and should instead be replaced with
+bundle dependencies. This is to avoid classloader errors because of two versions of the same types clashing
+with eachother in boot.dash.docker plugin.
+
+- guava 
+
+Process to replace the dependency is to 
+
+- remove it from the 'classpath' section of the manifest
+- add equivalent bundle dependency. Try to preserve the minimum version constraint.