IBC v1.0.0

[fedekunze]

replaces #130

• Targeted PR against correct branch (see CONTRIBUTING.md)

• Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

• Wrote tests

• Updated relevant documentation (docs/)

• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md

• Reviewed Files changed in the github PR explorer

---

For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge PR #XYZ: [title]" (coding standards)

[ancazamfir]

Ran the demo, good stuff! A few minor comments.

[codecov]

Codecov Report

Merging #172 into master will decrease coverage by 1.09%.
The diff coverage is 53.84%.

@@            Coverage Diff            @@
##           master     #172     +/-   ##
=========================================
- Coverage   66.86%   65.76%   -1.1%     
=========================================
  Files           5        5             
  Lines         507      517     +10     
=========================================
+ Hits          339      340      +1     
- Misses        137      146      +9     
  Partials       31       31

Impacted Files	Coverage Δ
app/utils.go	0% <0%> (ø)	⬆️
app/app.go	89.05% <100%> (+0.08%)	⬆️

[fedekunze]

replaced by #288