remove the subscription record upon successful unsubscribe
Added check for number of paramters
Added tests
Adding attributes for a lightweight export
unit test for PubSub subcription records removal
change minimal verson of PHPUnit
based on phpunit described in composer.json
[composer] Sync replace package list
Remove import of Zend root namespace
Issue
Issue ZF-3347: Allow Parent ServiceManager create service with the same name as in  child ServiceManager
Merge branch 'master' of git://github.com/quocvu/zf2 into hotfix/3295
[#3295] Fixed tests and logic flow

- Fixed the unit tests for the unsubscribe functionality. The table
  gateway was expecting the "delete" method now (not "update"), with
  only the "id" member in the array argument; additionally, we needed to
  test the return value, so I added a "will" clause.
- Altered the workflow of Callback to use a switch() statement for the
  "hub_mode"; this will make adding additional cases in the future
  easier, and allows us to raise an exception on an invalid mode.
Merge branch 'hotfix/3295'

Close #3295
Resolves: #2628 adds a destructor into SessionManager to call writeClose, writeClose now checks to see if the storage is immutable prior to attempting to save since the destructor may call writeClose a second time
Merge branch 'issue/invalid-function-call' of git://github.com/iwalz/zf2 into hotfix/3352
[#3352] Import ReflectionMethod
Merge branch 'hotfix/3352'

Close #3352
Merge branch 'optimization/git-export' of git://github.com/Ocramius/zf2 into feature/3386
[#3386] Remove INSTALL.md from export-ignore list
Merge branch 'feature/3386'

Close #3386