Revert "docs: whats-new: 1.6 is the minimum supported java version"

This reverts commit 6a2f1321ec9a2c1340fa025d15d31180459a155f.
Merge pull request #647 from rleigh-dundee/java6-minver

Make JDK 1.6 the minimum supported version
CellWorx: do not assume that the first well/field file exists

Instead, look for the first file that does exist, and use it to
determine the plane dimensions.
Fix daily artifact link
Deliberately change generated code comments
Fix compile error
Initial C++ implementation
merge develop -D org -I include -E exclude: PR 528 (Tile performance improvements for VMS and NDPI)
merge develop -D org -I include -E exclude: PR 635 (Use jgit-buildnumber to set version information in Maven)
merge develop -D org -I include -E exclude: PR 643 (Data test updates)
merge develop -D org -I include -E exclude: PR 644 (Add support for writing ModuloAlong* annotations)
merge develop -D org -I include -E exclude: PR 646 (Save current revision number in memo file)
merge develop -D org -I include -E exclude: PR 684 (AVI: fix byte count when skipping rows)
merge develop -D org -I include -E exclude: PR 685 (Downloads page: use PDF artifact)
merge develop -D org -I include -E exclude: PR 686 (CellWorx: do not assume that the first well/field file exists (rebased onto develop))
merge develop -D org -I include -E exclude: PR 687 (Deliberately change generated code comments)
merge develop -D org -I include -E exclude: PR 689 (Initial C++ implementation)