bump Configurations

mostly to get dSYMs

 Submodule changes to be committed:

 * Configuration 6186be7...f54fa27 (3):
   > Merge pull request #12
   > Merge pull request #11 from jspahrsummers/project-headers-first
   > Merge pull request #10 from jspahrsummers/no-warn-weak
Add class method to check for valid reference names.
Implement objectByPeelingTagError: to peel a tag object.
Add objectByPeelingToType:error: to GTObject using git_object_peel.
Change return type to id
Change < to !=
Change return type to id.
Change < to !=
Remove whitespace.
Add tests.
Merge pull request #210 from diederich/createDSYMs

bump Configurations
Merge pull request #214 from 5sw/tag_peel

Add wrappers for git_object_peel and git_tag_peel to GTObject/GTTag
Merge pull request #213 from 5sw/reference_is_valid

Add class method to check for valid reference names.