[PodTargetInstaller] Dont set the dylib version settings

[Installer] Print a post-install message

[EmbedFrameworksScript] Only manually copy swift runtime libs in Xcode 6

Add `tvos` as a new platform

[Analyzer] Build scoped pods once for each target definition

[PodTarget] Filter the scoped dependent_targets to match the target_d…

[Bundle] Update RuboCop to 0.34

[AggregateXCConfig] Set EMBEDDED_CONTENT_CONTAINS_SWIFT when using a …

[Resolver] Give a meaningful message for the case where there is no stable version for a pod, and user do not explicitly specify the required version.

Previous message was not covering the case where there are only pre-release versions between two stable versions, and user specifies version requirements for the pod such that only possibilities satisfying version requirements are pre-release versions. New message format also includes version requirements set by user in order to give a more explanatory output.