Make SyncNode.prototype.save non-enumerable
Make SyncNode.prototype.save non-enumerable

Use Object.defineProperty to define the save method of
SyncNode.prototype. This way we can make it enumerable: false and avoid
it being saved into the database each time we call
PersistedContext.prototype.save.

jimmywarting/Dexie.js,dfahlander/Dexie.js,dfahlander/Dexie.js,chrahunt/Dexie.js,dfahlander/Dexie.js,dfahlander/Dexie.js,chrahunt/Dexie.js,jimmywarting/Dexie.js,jimmywarting/Dexie.js,chrahunt/Dexie.js,chrahunt/Dexie.js,jimmywarting/Dexie.js