Various Fixes to multistructlog

- Force color output on structured-color formatter
- Add log levels and timestamps to output
- Fix reinitialization issue
- Cleanup/clarify README, add changelog

Change-Id: I11433f362e7c1ab8c1ee9fbca2081e136b57f22c
diff --git a/README.rst b/README.rst
index 2339a25..d0bdce6 100644
--- a/README.rst
+++ b/README.rst
@@ -8,23 +8,25 @@
 The API consists of a single function: ``create_logger()``.
 
 Args:
-   logging_config (dict):    Input to logging.config.dictConfig
-   level(logging.loglevel):  Overrides logging level for all loggers (not handlers!)
+    logging_config (dict):    Input to logging.config.dictConfig
+
+    level(logging.loglevel):  Overrides logging level for all loggers (not handlers!)
 
 Returns:
-   log: structlog logger object
+    log: structlog Logger object
 
 It can be invoked as follows:
 
     logging_config = ...
 
     log = multistructlog.create_logger(config, level=logging.INFO)
+
     log.info('Entered function', foo='bar')
 
 To create a ``logging_config`` dictionary, see these docs:
 
- https://docs.python.org/2.7/library/logging.config.html#logging.config.dictConfig
- http://www.structlog.org/en/stable/standard-library.html#rendering-using-structlog-based-formatters-within-logging
+- https://docs.python.org/2.7/library/logging.config.html#logging.config.dictConfig
+- http://www.structlog.org/en/stable/standard-library.html#rendering-using-structlog-based-formatters-within-logging
 
 There are no required arguments to `create_logger()` - any missing parts of the
 config will be filled in with defaults that print structured logs to the
@@ -33,9 +35,9 @@
 If you don't specify a ``formatters`` section in your config, three will be
 created which can be used in handlers:
 
- - ``json``: renders one JSON dictionary per message
- - ``structured``: prints structured logs with the ``structlog.dev.ConsoleRenderer``
- - ``structured-color``: same as ``structured`` but in color
+- ``json``: renders one JSON dictionary per message
+- ``structured``: prints structured logs with the ``structlog.dev.ConsoleRenderer``
+- ``structured-color``: same as ``structured`` but with forced color output
 
 If you don't specify a ``handlers`` section, a handler will be added that logs
 to console with ``logging.StreamHandler`` with format ``structured`` at level
@@ -47,13 +49,31 @@
 
 When setting log level, the higher of ``logging_config['loggers'][*]['level']``
 and ``logging_config['handlers'][*]['level']`` is used. The ``level`` parameter
-overrides the ``loggers`` value of level, not the ``handlers`` one.
+overrides the ``loggers`` value of level, not the ``handlers`` level.
 
 If the handler's level is set to ``DEBUG`` but the logger's level is set to
-``ERROR``, the handler will only log ``ERROR`` level messages.
+``ERROR``, the handler will be overridden and only log ``ERROR`` level messages.
 
 Multistructlog also adds a ``TRACE`` log level (integer level 5) that is below
 "DEBUG" to both standard library ``Logger`` and Structlog ``BoundLogger``.
 
 List of standard logging levels:
  https://docs.python.org/2.7/library/logging.html#logging-levels
+
+Changelog
+---------
+1.x versions
+
+- legacy
+
+2.0.0
+
+- Substantial refactor/rewrite
+- Cache logger objects
+- Add trace levels
+
+2.1.0
+
+- Force color on when using structured-color formatter
+- Print timestamp and loglevel by default
+- Fix issues with reinitialziaton of logger