The target dependencies are discovered implicitly, and removing the use of explicitly defined dependencies actually resolved a very odd bug with Xcode when building ReactExample.app for a device.
This module has build errors with Release configuration and is not necessary. When in Chrome debugging mode, a warning will be issued about missing the RCTSnapshot module though, which is why we linked against it in the first place.
It embeds RealmJS and GCDWebServers frameworks. This fixes#58, where there were issues with building for devices rather than just the simulator.
Some changes were made so that RealmReact.m didn't need to be weakly linked to libReact.a since that would actually cause any executable that uses this framework from being able to compile with bitcode.