Populated cacerts

Previously, builds of the JREs contained an empty cacerts file.  This
was problematic as it meant that nearly no application that needed to
use SSL would work without some extensive changes.  This change
populates the cacerts file (in all versions of the JRE) with the
certificates found at http://curl.haxx.se/ca/.

[#51298625]
Exclude debug symbols

Previously, 1.7.0_02 - _05 used a different name for their debug
information and so it was not being filtered from the distributions
properly.  This resulted in these versions of the JRE still being over
100MB in size.  This change ensures that artifacts with these names
are excluded as well.

[#51298625]
Added README.md

Previously the repository did not have a README.md file.  This change
introduces that file and adds content for how to run the script, along
with a listing of the values used to build JREs that are currently
available.

[#51298625]
Merge 51298625-cacerts to master

[Completes #51298625]