Script makes assumptions about platform and jar module names

[jpotts]

Currently the script assumes that platform and jar modules and directories are named *-platform-jar and *-share-jar, which is fine for out-of-the-box projects, but many people rename these modules.

Instead of relying on a specific name pattern, we could inspect the pom.xml files and determine which is which, regardless of how they are named.

[omar-ounoughi]

We handle this also in jar that merge the main pom.xml, it's easier to extract this information with java libraries and it can be reused by widows script.

We also need to keep changes that are made in pom.xml of the modules.
I'll work on it Sunday.