Changed swift versions to 5 for ApolloSQLite

[naknut]

If you try to build the current master with Carthage using Xcode 10.2 you get the following error:

error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0. (in target 'ApolloSQLite')

This its because Swift 3 is unsupported from Xcode 10.2 and forward. Lowest supported version is 4.0. After this change we compile all the schemes using the Swift 5 compiler so Carthage won't fail any more.

[apollo-cla]

@naknut: Thank you for submitting a pull request! Before we can merge it, you'll need to sign the Meteor Contributor Agreement here: https://contribute.meteor.com/

[jimisaacs]

@naknut hopefully those test failures are not caused by the build change :/
Our team would love this change to get in.
Do you have any Carthage work arounds in the mean time?

[naknut]

@jimisaacs I think it’s related. It seems like Travis doesn’t have Swift 5 support yet. That’s why it fails. I guess you can point to my version your Cartfile in the meantime. You can find my updates and patches version here.

[jimisaacs]

@naknut Great suggestion, I'll give that a shot as a workaround.

[jimisaacs]

@naknut I think I'd prefer if the version could stay 4.2 for the time being. I'll fork myself if I can get my build working without requiring 10.2

[martijnwalraven]

Closing this in favor of #475.