Improve SQLSyntax#eq, #ne to generate "is null" query when accepting null/None values
Merge pull request #282 from scalikejdbc/feature/eq-for-null

Improve SQLSyntax#eq, #ne to generate "is null" query when accepting null/None values
Fix build settings for sandbox
version 2.1.2
Tentatively back to sbt 0.13.5 due to scripted test failure
set 2.1.3-SNAPSHOT