Version bump 0.2.7 (#252)

Version 0.2.7 Release Notes

Most notable improvements in this release are bunch of improvements to dagit, most notably hot reloading and the in-browser rendering of python error. Also the ability to scaffold configs from the command line is the first fruit of the rearchitecting of the config system.

Dagster improvements:
	- Added scaffold_config command which generates the template of a yaml file needed to drive the execution of a particular pipeline
	- Added the ability to automatically serialize intermediate inputs as they flow between solids. Consider this alpha quality. It is currently hard-coded to write out to /tmp/dagster/runs/<<run_id>>

- - Dagit improvements:
	- Hot-Reloading and in-browser rendering of python errors.
	- Scrolling and performance improvements
	- Keyboard short cuts to navigate between solids using arrow keys
	- In-app previews of notebooks for dagstermill solids

python_modules/dagit/dagit/version.py

@@ -1 +1 @@
-__version__ = '0.2.6'
+__version__ = '0.2.7'

python_modules/dagit/setup.py

@@ -54,7 +54,7 @@ def long_description():
         'click>=6.7',
 
         # dagster
-        'dagster>=0.2.4',
+        'dagster>=0.2.7',
 
         # graphql
         'graphql-core>=2.1',

python_modules/dagster/dagster/version.py

@@ -1 +1 @@
-__version__ = '0.2.6'
+__version__ = '0.2.7'