Issue using with Postgres 9.3beta2

[bringking]

I am receiving the following error when I try and sync the models--

Unhandled rejection TypeError: Invalid Version: 9.3beta2
    at new SemVer (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/semver/semver.js:293:11)
    at compare (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/semver/semver.js:569:10)
    at Function.gte (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/semver/semver.js:618:10)
    at /Users/charlesking/insights-admin/node_modules/sequelize/lib/dialects/postgres/connection-manager.js:101:64
    at Object.tapHandler (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/bluebird/js/main/finally.js:64:23)
    at Object.tryCatcher (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/bluebird/js/main/util.js:26:23)
    at Promise._settlePromiseFromHandler (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:503:31)
    at Promise._settlePromiseAt (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:577:18)
    at Promise._settlePromises (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:693:14)
    at Async._drainQueue (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/bluebird/js/main/async.js:123:16)
    at Async._drainQueues (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/bluebird/js/main/async.js:133:10)
    at Immediate.Async.drainQueues [as _onImmediate] (/Users/charlesking/insights-admin/node_modules/sequelize/node_modules/bluebird/js/main/async.js:15:14)
    at processImmediate [as _immediateCallback] (timers.js:358:17)

[mickhansen]

@janmeier semver would expect -beta2 in this case, we probably can't expect semver to be able to handle all database versions.

[mickhansen]

In cases where we can't detect the version we should probably silently fail and just set null.

[janmeier]

Hmm, but which version should we asume the user has if the semver check fails?

Perhaps we should do an if semver.valid check here, and throw an error telling users to set databaseVersion manually if that fails?

[mickhansen]

@janmeier latest version, currently that'd be 9.2
I don't like the idea of forcing people to maintain a databaseVersion if they don't really care.