Bump cosmossdk.io/api from 0.2.6 to 0.4.0

[dependabot]

Bumps cosmossdk.io/api from 0.2.6 to 0.4.0.

Changelog

Sourced from cosmossdk.io/api's changelog.

0.4.0 (April 21, 2017)

BREAKING CHANGES:

• CLI now uses Cobra, which forced changes to some of the flag names and orderings

IMPROVEMENTS:

• basecoin init doesn't generate error if already initialized
• Much more testing

0.3.1 (March 23, 2017)

IMPROVEMENTS:

• CLI returns exit code 1 and logs error before exiting

0.3.0 (March 23, 2017)

BREAKING CHANGES:

• Remove --data flag and use BCHOME to set the home directory (defaults to ~/.basecoin)
• Remove --in-proc flag and start Tendermint in-process by default (expect Tendermint files in $BCHOME/tendermint). To start just the ABCI app/server, use basecoin start --without-tendermint.
• Consolidate genesis files so the Basecoin genesis is an object under app_options in Tendermint genesis. For instance:

{
  "app_hash": "",
  "chain_id": "foo_bar_chain",
  "genesis_time": "0001-01-01T00:00:00.000Z",
  "validators": [
    {
      "amount": 10,
      "name": "",
      "pub_key": [
	1,
	"7B90EA87E7DC0C7145C8C48C08992BE271C7234134343E8A8E8008E617DE7B30"
      ]
    }
  ],
  "app_options": {
    "accounts": [{
      "pub_key": {
        "type": "ed25519",
        "data": "6880db93598e283a67c4d88fc67a8858aa2de70f713fe94a5109e29c137100c2"
      },
      "coins": [
        {
          "denom": "blank",
</tr></table> 

... (truncated)

Commits

• 8e4d6a5 Merge branch 'master' into develop
• 72bebc6 Merge pull request #819 from cosmos/release/v0.14.0
• 4807a19 Merge pull request #774 from fedekunze/fedekunze/README
• 40b193f update changelog
• 1074ab6 version and changelog
• 9722f41 deps, changelog, version
• 56c3ae4 Merge branch 'develop' into fedekunze/README
• c155a82 addressed Rige's comments
• 9b246ec Update README.md
• 52f317a Merge pull request #800 from cosmos/rigel/tick-endblock
• Additional commits viewable in compare view

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[dependabot]

Superseded by #25.