Merge pull request jupyter-server#205 from Zsailer/0.3

bump version to 0.3 for minor release

Author: Zsailer

README.md

@@ -30,9 +30,6 @@ When a new minor version in released on PyPI, a branch for that version will be
 
 To see the changes between releases, checkout the [CHANGELOG](https://github.com/jupyter/jupyter_server/blob/master/CHANGELOG.md).
 
-To install the latest patch of a given version:
-
-    $ pip install jupyter_server>=0.2
 
 ## Usage - Running Jupyter Server
 

jupyter_server/_version.py

@@ -9,5 +9,5 @@
 
 # Next beta/alpha/rc release: The version number for beta is X.Y.ZbN **without dots**.
 
-version_info = (0, 3, 0, '.dev')
+version_info = (0, 3, 0, '')
 __version__ = '.'.join(map(str, version_info[:3])) + ''.join(version_info[3:])