Added a CHANGELOG.

CHANGELOG.md

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+## v0.3.0 (next)
+
+### `virtualenv` changes
+
+This segment now respects `VIRTUAL_ENV_DISABLE_PROMPT`. If this variable is set 
+to `true`, the segments does not get rendered.
+
+### `load` changes
+
+The `load` segement was split and a new segment `ram` was extracted. This new
+segment is able to show the free ram and used swap.
+
+### `vcs` changes
+
+This prompt uses the `VCS_INFO` subsystem by ZSH. From now on this subsystem
+is only invoked if a `vcs` segment was configured. 
+
+### New segment `battery` added
+
+A new segment that shows the battery status of your laptop was added.
+
+### New segment `go_version` added
+
+This segment shows the GO version.
+
+### New segment `nvm` added
+
+This segment shows your NodeJS version by using NVM (and if it is not 'default').
+
+### New segment `todo` added
+
+This segment shows your ToDos from [todo.sh](http://todotxt.com/).
+
+## v0.2.0
+
+### `longstatus` is now `status`
+
+The segments got merged together. To show the segment only if an error occurred,
+set `POWERLEVEL9K_STATUS_VERBOSE=false` (this is the same behavior as the old
+`status` segment.
+
+### Icon overriding mechanism added
+
+All icons can now be overridden by setting a variable named by the internal icon
+name. You can get a full list of icon name by calling `get_icon_names`.
+
+### Same color segements get visual separator
+
+This separator can be controlled by setting `POWERLEVEL9K_LEFT_SUBSEGMENT_SEPARATOR`
+or `POWERLEVEL9K_RIGHT_SUBSEGMENT_SEPARATOR`. By default this separator is
+printed in the foreground color.
+
+### `dir` segment has different strategies for truncation
+
+Now you can choose between `truncate_middle` or `truncate_from_right` by setting
+`POWERLEVEL9K_SHORTEN_STRATEGY`. Default behavior is unchanged (truncate whole
+directories). `POWERLEVEL9K_SHORTEN_DIR_LENGTH` can be used to influence how
+much will be truncated (either direcories or chars).
+
+### New segment `ip` added
+
+This segment shows your internal IP address. You can define which interfaces IP
+will be shown by specifying it via `POWERLEVEL9K_IP_INTERFACE`.
+
+### New segment `load` added
+
+This segment shows your computers 5min load average.
+
+### New segment `os_icon` added
+
+This segment shows a little indicator which OS you are running.
+
+### New segment `php_version` added
+
+This segment shows your PHP version.
+
+### New segment `vi_mode` added
+
+This segment gives you a hint in which VI-mode you currently are. This
+segment requires a proper configured VI-mode.
+
+### Added the ability to have empty left or right prompts
+
+By setting the according variable to an empty array, the left or right
+prompt will be empty.
+
+## v0.1.0
+
+This is the first release