Fixed: out of place table headers and other text positioning errors.

A line breaking, vertically centred or bottom aligned `_CPImageAndTextView` would not properly recalculate text position when the height of the text changed due to the width of the field changing.

This could cause, for example, table header text to be misaligned if the table was initialised with a zero height.
`- CPBox titleView`.

This method is the Cappuccino analog to `- NSBox titleCell`.
Implement `CPPointInRect`.

This improves source code compatibility with Cocoa when replacing NS with CP.
Improve Popover's content view resizing
Merge branch 'master' of https://github.com/cappuccino/cappuccino
Makes CPAlert above popovers
Fixed: `Error: Permission denied to access property '_childAppIsStarting'` in Firefox.

This error would occur when running an app in an iframe which could not access its parent frame.
With the NSMatrix->CPRadioGroup change the selectedRadio is easier to get.
Fixed: text field responder error when using a formatter.

If the formatter rejected a change and prevented the first responder status from being surrendered, the text field would still stop listening to key window changes and break first responder behaviour when switching between windows.
Fixed: a recent internal method rename broke `CPTabViewItem setView:`.
improve CPPopover's popoverDidShow: management

Before, the popoverDidShow: delegate methods was called during the CSS animation (if any)
Problem is that is we are processing big amount of data, the animation may hang for a bit in the middle, giving an impression of jerkiness.

Now, popoverDidShow: is called at the end of the CSS animation if popover is animated.
Merge branch 'master' of https://github.com/cappuccino/cappuccino
Fixed: incorrect `- CPWindow contentRectForFrameRect:` and  `frameRectForContentRect:` for borderless windows with toolbars.

The window views driving non standard windows (such as borderless or bridge windows) did not take the toolbar into account when calculating the content rect.

Apart from being wrong, this could lead to the content view overlapping the toolbar if the content view was set after the toolbar was prepared.

Perhaps the thought was that the base _CPWindowView shouldn't make assumptions about the placement and sizing of a toolbar and leave that up to subclasses, but the _CPWindowView tile method already did.
Merge pull request #1689 from slevenbits/slevenbits-content-rect-toolbar-fix

Fixed: incorrect `- CPWindow contentRectForFrameRect:` and  `frameRectForContentRect:` for borderless windows with toolbars.
Merge branch 'master' of github.com:cappuccino/cappuccino
Fixed: after tabbing to a token field it'd immediately lose first responder status.

Without this fix, the tab key press would be propagated to the browser, which would blur the focused input element, even when that input element was the one the new first responder intended to use.
Add a token field to attached sheet test for first responder testing in multi window situations.
Fixed: token fields lost first responder status when switching between windows.

E.g. in a two window application, if a token field was the first responder and another window was made active and then the original window made active again, the token field would no longer be the first responder.
Fixed: white line when scrolling between tokens.

Without this fix there'd be a white line visible on top of the token field when scrolling between multiple lines of tokens in a short field.

In addition the scroll view was 1 px short which made it possible to scroll tokens up and down by 1 px even when there was only a single row of tokens which should fit in the field.

This fix expands the clip rect upwards by 1 px to bring it all the way up to the first row of bezel pixels, ensuring sure a single row of tokens fits fully in a 1 row token field.
Put half a vertical spacing above the first row of tokens.

This means there'll be 1 px of spacing both above and below tokens in multi-row configurations. It also places the token much better in the field both in single and multi-row configurations, at least for the Aristo theme.