Update copyright year, README for Django 2.0, add django versions to setup.py

[tony]

Routine touchups to readme/packaging

[codecov-io]

Codecov Report

Merging #566 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #566   +/-   ##
=======================================
  Coverage   91.92%   91.92%           
=======================================
  Files          33       33           
  Lines        1660     1660           
  Branches      143      143           
=======================================
  Hits         1526     1526           
  Misses         95       95           
  Partials       39       39

Flag	Coverage Δ
#dj110	83.91% <ø> (ø)	⬆️
#dj111	86.08% <ø> (ø)	⬆️
#dj18	84.75% <ø> (ø)	⬆️
#dj19	83.79% <ø> (ø)	⬆️
#dj20	84.21% <ø> (ø)	⬆️
#djmaster	84.21% <ø> (ø)	⬆️
#mysql_innodb	84.21% <ø> (ø)	⬆️
#mysql_myisam	84.15% <ø> (ø)	⬆️
#postgres	87.59% <ø> (ø)	⬆️
#py27	89.21% <ø> (ø)	⬆️
#py34	83.79% <ø> (ø)	⬆️
#py35	83.91% <ø> (ø)	⬆️
#py36	84.69% <ø> (ø)	⬆️
#sqlite	85.96% <ø> (ø)	⬆️
#sqlite_file	83.79% <ø> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0fde43b...1183815. Read the comment docs.

[blueyed]

Thank you!