Update git submodules
Update git submodules

* Update plugins/plugin-manager from branch 'master'
  to 44808dcad3c978ed12bb2cb454c6ad320912aa8a
  - Remove commons:lang3 and use the one from core
    
    The commons:lang3 dependency is now part of the standard
    dependencies and therefore does not need to be explicitly
    mentioned in the plugin's BUILD file.
    
    Change-Id: I257eb6ccc7feafd5686b189341475d0ebfdb0607
    
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