feat #404 improve logging in tests

1) Added Assert.assertEqualsWithTolerance(num1, num2, tolerance)

2) Formatted output in Assert.assertJsonEquals

Instead of dumping minimal JSON strings in failed JSON comparison,
pretty-print them.

3) Log to browser console in JSUnit in verbose mode

Currently, the SilentArrayAppender is the appender used in our JSUnit.
This means that things like $logError or $logWarn will not be displayed in
Firebug console.

However, the appender is changed from DefaultAppender in the middle of the
execution, which results in some logs actually being available in the
browser console, but the rest (after changing appender) not.

For debugging purposes, it's useful to see the errors and warnings directly
in the browser when running the test.

This commit adds the possibility to see all the logs if the URL of the
test page contains 'verbose=true' part.

Close #404.
wip refactor remove global style

Removes global CSS (affecting body) from the framework itself.
Adds the removed styles to HTML page used for Iframe tests.
wip remove deprecated things from skin
wip remove global style from SelectStyle
deprecating IconLib
deprecate bindRefreshTo statement
refactor remove color from Link
refactor remove "onvalidate" from TextInput and Select
refactor remove Date.firstDayOfWeek
refactor remove EnvironmentBase.setEnvironment
refactor remove SubModuleDefinition.display from CfgBeans

It was not used anywhere in the code.
refactor remove obsolete JSDoc in SimpleSessionQueuing
refactor remove legacy way of declaring objects in an interface
refactor remove deprecated methods from AriaLib
refactor remove deprecated utils.FormatFactory
refactor remove OldFrame
refactor remove deprecated usage of expandos in DomElementWrapper
refactor remove deprecated _formatCache in utils.Number
refactor remove deprecated members of environment.WidgetSettings

Removed the following methods and cfgBeans members:
getWidgetLib()
getWidgetLibClassName()
defaultWidgetLib
refactor remove utils.Event.getElement