v0.2.7

Update notes: 0.2.6 introduced a breaking change for PhantomJS users, so we've reverted a change and published 0.2.7. See #1024 for details.

Changes:

• [BUGFIX #1025 Fix factory association feature @yratanov
• [BUGFIX #1024 Replace Number.isInteger with lodash isInteger @ilucin
• [ENHANCEMENT #1023 Allow route handlers to return empty string responses @bendemboski
• [ENHANCEMENT #1030 Code Climate config with ESLint and duplication @larkinscott