* new class DescriptiveComponent, provides setLabel and setHint
* classes Label, BaseLink and Widgets inherit from DescriptiveComponent and are ready to use setLabel and setHint
* classes TextStylable and Blockstylable removed, both provide direct html which the responsibility of the theme
* created Interface bebop/util/Panelcontraints to provide positional information for blocks fpr backwards compatibility. We have to decide whether to discard/replace or retain them.
* created cass Embedded as a kind of spinn-off from Label to handle arbitrary String data, specifically JavaScript. It's part of a strategy to remove Strings from Label to prevent developers just to hack fixed strings and make a mess of the User Interface.
* various reformatting and documentation added.
git-svn-id: https://svn.libreccm.org/ccm/trunk@2728 8810af33-2d31-482b-a856-94f89814c4df
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