Drop Julia 1.0, alphabetize [compat]

[timholy]

Makes Aqua happy

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -4.23 ⚠️

Comparison is base (0046ec7) 75.50% compared to head (55d6d5c) 71.28%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #194      +/-   ##
==========================================
- Coverage   75.50%   71.28%   -4.23%     
==========================================
  Files          10       10              
  Lines         592      592              
==========================================
- Hits          447      422      -25     
- Misses        145      170      +25     

Impacted Files	Coverage Δ
src/precompile.jl	94.18% <100.00%> (ø)

... and 3 files with indirect coverage changes

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[timholy]

OK, it's worse than I thought. This is only about tests, but it can't even install the test dependencies on Julia 1.0.

I really regret not making Julia 1.6 the minimum for this release. Let's see if General allows us to register 0.10.1 while dropping Julia 1.0 support.

[timholy]

What do you know...it's accepting it. Somehow I thought we had to bump the minor version when dropping support for older Julia versions, but maybe that applies only post-1.x packages (for which a minor bump is not breaking).