Merge pull request steemit#1192 from steemit/steem-prerelease-v0.19.0

Steem v0.19.0

Merge branch 'master' into steem-prerelease-v0.19.0

Merge branch 'master' into steem-prerelease-v0.19.0

Merge branch 'master' into steem-prerelease-v0.19.0

Merge pull request steemit#1115 from steemit/steem-prerelease-v0.18.5

Steem prerelease v0.18.5

Merge pull request steemit#1099 from steemit/steem-prerelease-v0.18.4

Steem prerelease v0.18.4

Merge pull request steemit#1095 from steemit/steem-prerelease-v0.18.3

Steem v0.18.3

Merge branch 'master' into steem-prerelease-v0.18.3

Merge pull request steemit#1006 from steemit/steem-prerelease-v0.18.2

Steem prerelease v0.18.2

Merge pull request steemit#999 from steemit/steem-prerelease-v0.18.1

Steem prerelease v0.18.1