Re-create the iPOJO patch

[tcalmant]

The version of the iPOJO manipulator included in org.ow2.chameleon.eclipse.ipojo.dependencies is a custom patched version.

The patch has since been lost, but the idea was to modify the java.util.jar.Manifest object right after its create, using java.lang.reflect, to replace an HashMap (undeterministic key order) by a TreeMap (deterministic key order).
This patch ensures that the MANIFEST.MF file won't change if the meaning of its content doesn't.

This issue can be solved 2 ways:

1. If Upgrade ASM version #4 doesn't involve changes in iPOJO, the patch for the current issue will be added to the repository
2. If the changes in iPOJO are too large, we'll create a fork and modify it directly.

[tcalmant]

Path is not necessary since iPOJO 1.8, but the README file in the dependencies plugin folder hadn't been updated.
The issue was solved in FELIX-3131.
The patch is still visible at commit 3f42274