change timeout in tests

Merge branch 'dev'

set golang version to 1.11

regenerate travis deploy key

bump version to v0.3.2

Merge pull request tuna#60 from tuna/dev

Dev

Merge pull request tuna#58 from tuna/dev

Dev

Merge pull request tuna#54 from tuna/dev

Dev

Merge pull request tuna#51 from tuna/dev

Dev

test travis upload