New: Added support for CPTimeZone and CPDateFormatter

- Added support for CPDateFormatter in Foundation
- Added support for CPTimeZone in Foundation
- Added support fo CPDateFormatter in nib2cib

Test app in Tests/Manual/CPDateFormatter
UnitTest in Tests/Foundation/CPTimeZoneTest.j
UnitTest in Tests/Foundation/CPDateFormatterTest.j
Fixed bunch of bugs in CPDateFormatter with TimeZone
Fixed small bus about timeZone
Removed double action in CPDatePicker
Updated manual example
Corrected bad test
Added support for timeZone in CPDatePicker textual
Added support for timeZone in CPDatePicker calendar
Added CPTimeZone test
Fixed bug when changing timeZone of the CPDatePicker
Fixed: CornerView in TableViews from cibs sized

Previously the size of the cornerView was wrong in a TableView from cib.

Now the nib2cib of _CPCornerView set the good value.

Fixes #1865
Fixed: OutlineView disclosure button selected themestate when selected
Previously, when a row with a disclosure control (triangle) was selected, the row was selected
but the control remained in the unselected themestate. Disclosure control themestate was only being
changed when the control itself was clicked on. This fix changes the controls themestate whenever
the row selection changes.
added don't attempt to setthemestates if there are no disclosure controls
previous commit was failed the travis build test when there were no controls
Fixed: Windows with toolbars do not display correctly as sheets

Previously it wasn't possible to display a toolbar in a sheet window.
Now, a toobar is displayed well in a window. This PR allows every sheet window to have a toolbar, with the PR #1918 just the CPTitleWindow/HUD sheet could have a toolbar as in cocoa.

Fixes #1863
Refactor code
Added test for toolbar sheet
Added theme for Arsito1
Updated test
Merge pull request #1903 from Dogild/CPDateFormatterSupport

New: Added support for CPTimeZone and CPDateFormatter
Merge pull request #1912 from Dogild/CornerView

Fixed: CornerView in TableViews from cibs are not sized well