* pod_update:
  [Install/Update] Keep track of external sources while locking Pods.

* master:
  [Git] Fix for exception in failing integration test.
  Add a link to @subdigital’s NSScreencast episode about creating a podspec.
  More cleanup using ActiveSupport's Oxford comma styling of a list.

* master:
  [Excutable] Fix for ruby 1.8.7.
  [CHANGELOG] Didn't realize that github already adds a separator line for each entry.
  [CHANGELOG] Update
  Add static libraries to root of project if no Frameworks group exists. #431
  Cleanup a little by using ActiveSupport convenience methods.
  CHANGELOG.md
  [Documentation] Use public headers if specified.
  [Downloader] raise when importan commands fail.
  [Git] Init submodules only if requested.
  [Rakefile] commit Gemfile.lock on release.
  [Changelog] Release 0.11.1.
  Release 0.11.1
  [Changelog] Update.

Better to allow the user to choose how to organize her project.

skip_ci.

Closes #318.

* master:
  [Git] Init submodules only after the checkout. #451
  [Subversion] Improved head support.
  [LocalPod] Completed fix for public headers handling. #449
  [LocalPod] Fix public headers handling. #449

* master:
  Updated installation notes.
  [Gemfile.lock] update.
  Release 0.11.0
  [Rakefile] fine tuned release task.
  [CHANGELOG] Updated.
  fixing path on push command documentation description
  updating description for pod push with more detail about how it works

Updated installation notes.