This is for all platforms and Java SE release families

Description:

- Generate a diff file between source bundles for a new build and the previous build at the time of build promotion
. If it's a b01 of an update release, use the latest build of the previous update release
. If it's a b01 of a new feature release, use the latest build of the release off which the new feature release is branched
. The diff file should have the current build name and the previous build name (eg. src-bdl-diff-6u25b01-6u24b07.txt)
. The source bundle diff file should contain plain text format with two parts
. first part contains file names with full path for the files in the new build but not in the old build
. second part contains file names with full path for the files in the old build but not in the new build
- The source bundle diffs only need to be done for SolWin bundles. (Since bundles for other platforms are made by the same filter, checking solwin bundle should be sufficient to guarantee other bundles correctness.)