Dataflake-ldapconnection

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- Python 3 compatibility
- Move from ``python-ldap`` to ``pyldap`` for Python 3 compatibility
- PEP 8 code cleanup
- added Travis CI automatic testing configuration
- use pkgutil-style namespace declaration
- package cleanup (``.gitignore``, ``MANIFEST.in``, ``README.rst``)
- docs cleanup (``Makefile``, ``conf.py``)
- tests cleanup (``tox.ini``, ``.travis.yml``)
- remove unsupported documentation bits
- fix coverage tests to only test this package
- remove coveralls from the Travis CI configuration
- make the character sets used for communicating with the LDAP libraries
(``ldap_encoding``) and the calling side (``api_encoding``)
configurable in the :mod:`LDAPConnection` constructor.

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- Factored the ``dataflake.ldapconnection.tests.fakeldap`` module
into a separate package ``dataflake.fakeldap``

- Restricted the supported Python versions to 2.6 and 2.7.

- removed old test_suite fossils

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- Added a simple tox configuration to quickly test with different
Python versions. As a result of successful testing, re-declare
compatibility with Python 2.4 and 2.5.

- Moved the documentation build dependencies into a setup extra so
building them without buildout becomes easier.

- Added setup.py aliases for creating a testing sandbox and the
documentation dependencies, and use them in the buildout
configuration.

- Extended ``fakeldap.RaisingFakeLDAPConnection`` to accept a list
of exceptions to raise. On each call to the method that is set
to raise the exception, the first item in the exception list
is removed and raised. This allows testing code areas nested in
more than one ``try/except`` clause.

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- Update bootstrap.py to what ships with zc.buildout 1.5.2

- fakeldap: Add email characters and some non-ASCII characters to
FLTR_RE, to be able to use them in searches. (Stefan Holek)

- fakeldap: Add unbind_s API. (Stefan Holek)

- fakeldap: Deep-copy entries before returning them. (Stefan Holek)

- fakeldap: Only return requested attributes. (Stefan Holek)

- fakeldap: Optionally disable password hashing. (Stefan Holek)

- fakeldap: Optionally maintain the 'memberOf' attribute of group
members. (Stefan Holek)

- connection: Clean up encoding and decoding of values for when the
api_encoding is set to None. (Stefan Holek)

- connection: New 'raw' kwarg for the search API. If true, search
results are returned in the ldap_encoding. (Stefan Holek)

- connection: Store a connection's bind_dn and bind_pwd as is, and
encode them before use. (Stefan Holek)

- connection: Fix a condition that caused rebinding to fail if only
one of bind_dn and bind_pwd had changed. (Stefan Holek)

- connection: Add disconnect API. (Stefan Holek)

- connection: Allow to delete subsets from multi-valued attributes.
(Stefan Holek)

- switched documentation to point to the new Git repository

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- Using ``id()`` is not random enough for a unique hash.