Make connection resolver parameter optional in Eloquent model.

If no connection name is passed then the resolver returns the default.
Replace redundant call to freshTimestamp with time variable
Merge pull request #1321 from Ruby184/fix/redundant_call_to_freshTimestamp

Replace redundant call to freshTimestamp with time variable
Merge pull request #1320 from ziadoz/patch-1

[Eloquent] Make connection resolver parameter optional in model.
Fix pivot bug.
Clean up code in timestamp pivots.
Set raw attributes on pivot.
Pass container to dispatcher in Capsule. Closes #1337.
Return true if the model delete is successful.
Fix typo.
Rename stub files to stub extension to not confuse IDEs. Fixes #1158.