git-logs: Add more context to bug reports, group other commits

This makes the script a little bit more clever. It uses commits
to work out each commit and allow you to see the entire
commit in the context of the bug / i18n change

Without this the links to bugs don't provide more information
on what they do

Change-Id: Iff58f23a5aeed9865425388cff3b2bddef675197
Merge "git-logs: Add more context to bug reports, group other commits"