Out of date about avro.jl

[Hydrotoast]

Thanks for identifying this issue @bryaan and thanks to @twadleigh for providing the necessary code changes.

I have not used Julia 1.0+ yet, so please bear with me to resolve this issue. :)

Update. After merging #3 , I run the command to add the Avro package as you have show:

(v1.1) pkg> add Avro
  Updating registry at `~/.julia/registries/General`
  Updating git-repo `https://github.com/JuliaRegistries/General.git`
 Resolving package versions...
ERROR: Unsatisfiable requirements detected for package Avro [cb912096]:
 Avro [cb912096] log:
 ├─possible versions are: 0.0.1-0.0.3 or uninstalled
 ├─restricted to versions * by an explicit requirement, leaving only versions 0.0.1-0.0.3
 └─restricted by julia compatibility requirements to versions: uninstalled — no versions left

Although the PR did not completely resolve this issue, it is necessary to resolve the issue.

Root cause. To analyze the root cause, observe that the range of versions between our error outputs have not changed after merging the PR: 0.0.1-0.0.3. Hence, a new version must be published manually. This is likely a task for me.

Plan. While reviewing the Julia v1.0+ changes, I discovered that the package management system was redesigned. Since this project was last updated with the package management system from Julia v0.6, I plan to change the configuration as necessary, but the build may be unstable in the interim.

Note. To avoid breaking any existing clients, I will try to migrate this on a branch. However, I am currently away from home for the next ~4 days; so the update may not be released until then.

[bryaan]

This should be resolved by merging #3