Remove old unused files
minor cleanup. add child event handlers for QtWindow
remove old wx files
start porting wx backend
Use Instance instead of Typed to allow for more flexibility
Move proxy creation to Application. Fix typos in Qt docstrings.
Fix a couple bugs in the grid() layout helper
Port the wx backend to the new proxy api.
Fix doc typo
Merge branch 'master' of github.com:nucleic/enaml
Add backwards compatibility code for 'event', 'bgcolor', and 'fgcolor'
Add back the old identifier mechanism, but emit an explicit future
warning.

This will all be removed in Enaml version 0.8.0
Add future warnings on open/close
Add traits support using an ENV flag
Fix a potential observer leak in the << operator
Add an operator context hook which can be used to change operators at
import time.
Post process the enamldef before running the decorators.

The post processing is done immediately after the class is created.
Cut the 0.7.0 release
bugfix wx factories module
Add dual slider widget