Fixed: scroll wheel speed is way to low in firefox

I increased scroll wheel speed to a sensible value
formatting
symbolic constant
FIXED: Error when binding several objects to the same objectController.selection.keyPath and objectController selection changes. Fixes issue #2039
fix for menu enabled state not beeing visually updated upon change
fixed: .insertAttributedString.. does not coalesce
unit test for coalesce on insert
whitespace formatting
added manual test
formatting
double var fix
Here is an ojtest for this issue.
Fixed: unsigned delegate methods of CPTokenField erased by CPTextField

Previously, the unsigned delegate methods _implementedDelegateMethods was erased by the CPTextField, so some delegate methods didn't work any more.
This PR just renames the unsigned delegate methods to _implementedTokenFieldDelegateMethods.
Added: added unit test for CPTokenField
Fixed: CFHTTPRequest now accepts the withCredentials property

From the original PR:

Currently, CPURLConnection has no way to access the withCredential
property of an XMLHTTPRequest, meaning we can't utilize cross-domain
calls using CORS in our applications.

This commit adds the withCredentials property to CFHTTPRequest.

Refs #1296
Fixed: CPURLConnection now accepts withCredentials

From the original PR:

CPURLConnection was modified to reduce the withCredentials flag to a file-scope member. This has been done to facilitate use of withCredentials when a developer cannot modify the CPURLConnection manually (e.g. https://github.com/wireload/Ratatosk/blob/master/WLRemoteLink.j, line 466).

Refs #1296, #2138
Working #2144: Reintegrated changes from #2138 and fixed test fail.

Now using instance variables for withCredentials.  Also fixed test failure.
Fixed: change variable name

Changed "returnValue" to "connection" - more descriptive.

Ref: https://github.com/cappuccino/cappuccino/pull/2144#commitcomment-6769088
Formatting: Cleaning up CPURLConnection

Removed some extra whitespace and added a newline at the end of the file.
Merge branch 'fix-cfhttp-cpurl-2141-2138' of github.com:ahankinson/cappuccino into fix-cfhttp-cpurl-2141-2138