Updatefromrelease - Incorporate lessons learned from latest publishing. (#656)

* Initial 0.1-BETA release.

* Update publish clauses.

* Bump version after rebuilding with Java 1.7

* Update to current sbt resolver idiom.

* Bump version

* Revert "Bump version"

This reverts commit 37ce060329d437c4494dd1560c1fb8a65a7a0718.

* Bump version.

* Update installation instructions with sbt publish-local.

* set release version

* bump release versions

* bump SNAPSHOT version

* bump version

* update deprecated sbt code

* Drop pomExtra scm definitions (now generated by git.remoteRepo.

* Incorporate lesssons learned from latest publishing.

* Bump testing coverage for Scala 2.12 support.

* Respond to review requests - unindent changes; unbump plugins version.