Update changelog for release

Author: eldoo

HISTORY.rst

@@ -13,6 +13,7 @@ Added:
 Changed:
 ~~~~~~~~
 
+- Connection functions to also get parameters from environment variables `#17 <https://github.com/OphidiaBigData/PyOphidia/pull/17>`_ 
 - Reduce2 method in cube module for multiple threads `#15 <https://github.com/OphidiaBigData/PyOphidia/pull/15>`_
 - Client module to read variables from extra fields in JSON response `#12 <https://github.com/OphidiaBigData/PyOphidia/pull/12>`_
 - Metadata method in cube module to filter on variables `#11 <https://github.com/OphidiaBigData/PyOphidia/pull/11>`_

README.rst

@@ -127,14 +127,6 @@ Instantiate a new Client common to all Cube instances:
    from PyOphidia import cube
    cube.Cube.setclient(username="oph-user",password="oph-passwd",server="127.0.0.1",port="11732")
 
-or
-
-.. code-block:: python
-
-   from PyOphidia import cube
-   cube.Cube.setclient(read_env=True)
-
-
 Cube attributes
 ^^^^^^^^^^^^^^^
 Instance attributes: