Prepare for v1.0.0

[akshayjshah]

Preparation for initial release.

Note that we can't usefully put version.go into the main automaxprocs package, since that package has import-time side-effects.

[codecov]

Codecov Report

Merging #5 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master       #5   +/-   ##
=======================================
  Coverage   93.25%   93.25%           
=======================================
  Files           7        7           
  Lines         178      178           
=======================================
  Hits          166      166           
  Misses         10       10           
  Partials        2        2

---

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 0dd381f...92a199d. Read the comment docs.