Gekko 0.6 released

[mark.sch]

Ok, back on track with v0.6 testing. I get missing exchangeChecker. @Mike, is --import implemented already and should run?

2018-06-30 16:36:22 (DEBUG): No end date specified for importing, setting to 2018-06-30 14:36:22
module.js:549
throw err;
^

Error: Cannot find module '/git/gekko06/core/../core/exchangeChecker'
at Function.Module._resolveFilename (module.js:547:15)
at Function.Module._load (module.js:474:25)
at Module.require (module.js:596:17)
at require (internal/module.js:11:18)
at Object.<anonymous> (/git/gekko06/core/markets/importer.js:31:23)
at Module._compile (module.js:652:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)