Update to latest release of pom-fiji parent

This makes the build reproducible.
Merge pull request #12 from ctrueden/pom-updates

Update to latest release of pom-fiji parent
fix lut size for downsampling
shuffle tile order before optimizing
bump version to 0.7.0-SNAPSHOT
prepare transformation plugins to use pre-existing ROIs
Bump to latest pom-fiji

Updated to pom-fiji 6.1.1 - which improves Maven enforcer performance
and provides default Maven enforcer configuration that should make
life easier for Fiji developers.
Bump to latest pom-fiji

Updated to pom-fiji 6.1.3.