Validate slider value, when limits change
The value of slider changes in frontend, and readout, but not in python obj.
Sending data back to python object after slider values change
A comma after `this.touch`
Automatically open a comm on creation of widgets

This will immediately create a model on the javascript side when a widget is created.  This means that, for example, a widget that only interacts with its model can work without "displaying" it.
Don't register comm with comm_manager if comm_manager is undefined
Check for null session in _publish_msg and _session)default
Make the widget comm attribute more straigtforward

Instead of automagically instantiating a comm when it is accessed, require a call to open().  This makes the comm attribute much less magical, and hopefully more understandable.
allowing widet id to be set externally
adressed @jdfrederer's concern!
Removed alert statement!
Removed another stray alertO
added 'var'
use write_error instead of get_error_html

get_error_html is removed in tornado 4.0
Merge pull request #6318 from minrk/tornado-4-error-html

use write_error instead of get_error_html
Use appnope in qt and wx gui support from the terminal; closes #6189

On Mavericks, the qt and wx gui support was unusable from the
ipython console in a terminal.  Using nope() in enable_qt4 and
enable_wx, and reversing with nap() in disable_qt4 and disable_wx,
solves the problem.
Merge pull request #6325 from minrk/6189

Use appnope in qt and wx gui support from the terminal
allow slash in root->tree redirect

before #6117, only `/base_url/` worked,
after #6117, only `/base_url worked,
after this PR, both should work.
Merge pull request #6333 from minrk/tree-slash-redirect

allow slash in root->tree redirect
Merge pull request #6171 from tarzzz/slider-value-validate

Validate slider value, when limits change