Upgrade sdk to launchpad

[alpe]

After #208
See #191

Upgrade to cosmos-sdk v0.39.0

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For admin use:

• Added appropriate labels to PR (ex. WIP, R4R, docs, etc)
• Reviewers assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[codecov]

Codecov Report

Merging #209 into master will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #209   +/-   ##
=======================================
  Coverage   72.08%   72.08%           
=======================================
  Files          27       27           
  Lines        2629     2629           
=======================================
  Hits         1895     1895           
+ Misses        622      621    -1     
- Partials      112      113    +1     

Impacted Files	Coverage Δ
app/app.go	89.34% <100.00%> (ø)
lcd_test/helpers.go	75.71% <100.00%> (+0.71%)	⬆️
x/wasm/internal/keeper/keeper.go	91.10% <0.00%> (-0.54%)	⬇️

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[ethanfrey]

Looks good to me as soon as the final release is cut.

One thing I noticed is the painful duplication of wasmd and wasmgovd code. I will make a new issue on that

[ethanfrey]

Looking good 🚀

Time to merge. And then a v0.10.0-alpha tag. I think we are feature complete for 0.10 except for updating CosmWasm and some minor improvements