Add libs to get information about or manipulate a buildbot master.

bootstrap/deps.pyl

 #vim: ft=python:
 {
   'wheel': {
     'version': '0.24.0',
     'build': '0',
     'gs': 'c02262299489646af253067e8136c060a93572e3.tar.gz',
   },
 
   'argcomplete': {
     'version': '0.8.0',
     'build': '0',
     'repo': 'external/github.com/kislyuk/argcomplete',
     'rev': 'a88dcaae3132003ae123d39a2cd9924113b8f985',
     'implicit': True,  # Required by expect_tests
   },
   'beautifulsoup4': {
     'version': '4.3.2',
     'build': '0',
     'repo': 'external/code.launchpad.net/beautifulsoup',
     'rev': '372c827cb1d38e418163d6b3fa5f550bdc5a8ec7',
     'implicit': True,  # Required by WebTest
   },
   'cffi': {
     'version': '0.9.0',
     'build': '1',

[ghost stip (do not use), 2015/04/27 23:42:18]

these were from a rebase

     'gs': 'cabed2c0ab329dc19ff4f089b26bf9f4faae55e4.tar.gz',
     'implicit': True,  # Required by cryptography
   },
   'coverage': {
     'version': '3.7.1',
     'build': '0',
     'repo': 'external/github.com/nedbat/coveragepy',
     'rev': '8da39d5389c602bb838363563bd2e31ecbb53754',
     'implicit': True,  # Required by expect_tests
   },
@@ skipping 107 matching lines @@
     'version': '0.0.5',
     'build': '0',
     'gs': '108bdef1b3ca7050ff93c59e7ef7225c9c1a8b07.tar.gz',
     'implicit': True,  # Required by oauth2client
   },
   'python_dateutil': {
     'version': '1.5',
     'build': '0',
     'repo': 'external/code.launchpad.net/dateutil',
     'rev': '30af0028a6633dc415a6c41bf2f2a67bda9bb68a',
-    # TODO(agable): Figure out if this is actually necessary. I think it's not.
   },
   'psutil': {
     'version': '2.1.3',
     'build': '0',
     'gs': 'aae4725eb33cf56d4480bc60f50c147870d607ba.tar.gz'
   },
   'pycparser': {
     'version': '2.10',
     'build': '0',
     'repo': 'external/github.com/eliben/pycparser',
@@ skipping 91 matching lines @@
     'rev': '6581ebfe7e1f95b6f2e193723a9e0e1f02337851',
   },
   'WebOb': {
     'version': '1.4.1dev',
     'build': '0',
     'repo': 'external/github.com/Pylons/webob',
     'rev': 'ec67aba9d62d0e32dc5154c940a2214441bf0a9e',
     # 'implicit': True,  # Required by webtest
   },
 }